Wrong assertion on fugitive directory buffers

### Description

When I open a fugitive buffer by `:Gedit somebranch:somedir` (openning somedir in the branch `somebranch`), `gitsigns` throws the following error

```
Error executing luv callback:
...cal/share/nvim/lazy/gitsigns.nvim/lua/gitsigns/async.lua:71: The async coroutine failed: ...local/share/nvim/lazy/gitsigns
.nvim/lua/gitsigns/git.lua:218: assertion failed!
stack traceback:
        [C]: in function 'assert'
        ...local/share/nvim/lazy/gitsigns.nvim/lua/gitsigns/git.lua:218: in function 'file_info'
        ...local/share/nvim/lazy/gitsigns.nvim/lua/gitsigns/git.lua:82: in function 'update'
        ...local/share/nvim/lazy/gitsigns.nvim/lua/gitsigns/git.lua:431: in function 'new'
        ...al/share/nvim/lazy/gitsigns.nvim/lua/gitsigns/attach.lua:221: in function 'fn'
        .../share/nvim/lazy/gitsigns.nvim/lua/gitsigns/debounce.lua:68: in function 'attach_throttled'
        ...al/share/nvim/lazy/gitsigns.nvim/lua/gitsigns/attach.lua:374: in function <...al/share/nvim/lazy/gitsigns.nvim/lua
/gitsigns/attach.lua:373>
stack traceback:
        [C]: in function 'error'
        ...cal/share/nvim/lazy/gitsigns.nvim/lua/gitsigns/async.lua:71: in function 'callback'
        ...cal/share/nvim/lazy/gitsigns.nvim/lua/gitsigns/async.lua:107: in function 'on_exit'
        ...e/nvim/lazy/gitsigns.nvim/lua/gitsigns/system/compat.lua:257: in function <...e/nvim/lazy/gitsigns.nvim/lua/gitsig
ns/system/compat.lua:227>
```

This is because here

https://github.com/lewis6991/gitsigns.nvim/blob/c6fedfd0b1715ee624384b134becec0a7b0a3d28/lua/gitsigns/git.lua

the value of  `objtype`  is `"tree"`

Also, sometimes, when using `.` as `somedir`, a different error is thrown

```
Error executing luv callback:
/tmp/gitsigns_issue/gitsigns//lua/gitsigns/async.lua:71: The async coroutine failed: /tmp/gitsigns_issue/gitsigns//lua/gitsig
ns/git.lua:206: fatal: empty string is not a valid pathspec. please use . instead if you meant to match all paths

stack traceback:
        [C]: in function 'error'
        /tmp/gitsigns_issue/gitsigns//lua/gitsigns/debug/log.lua:136: in function 'eprint'
        /tmp/gitsigns_issue/gitsigns//lua/gitsigns/debug/log.lua:141: in function 'eprint'
        /tmp/gitsigns_issue/gitsigns//lua/gitsigns/git.lua:206: in function 'file_info'
        /tmp/gitsigns_issue/gitsigns//lua/gitsigns/git.lua:82: in function 'update'
        /tmp/gitsigns_issue/gitsigns//lua/gitsigns/git.lua:431: in function 'new'
        /tmp/gitsigns_issue/gitsigns//lua/gitsigns/attach.lua:221: in function 'fn'
        /tmp/gitsigns_issue/gitsigns//lua/gitsigns/debounce.lua:68: in function 'attach_throttled'
        /tmp/gitsigns_issue/gitsigns//lua/gitsigns/attach.lua:374: in function </tmp/gitsigns_issue/gitsigns//lua/gitsigns/at
tach.lua:373>
stack traceback:
        [C]: in function 'error'
        /tmp/gitsigns_issue/gitsigns//lua/gitsigns/async.lua:71: in function 'callback'
        /tmp/gitsigns_issue/gitsigns//lua/gitsigns/async.lua:107: in function 'on_exit'
        .../gitsigns_issue/gitsigns//lua/gitsigns/system/compat.lua:257: in function <.../gitsigns_issue/gitsigns//lua/gitsig
ns/system/compat.lua:227>
```

### Neovim version

NVIM v0.10.4 Build type: RelWithDebInfo LuaJIT 2.1.1731601260 Run ":verbose version" for more info

### Operating system and version

Arch Linux current

### Expected behavior

Gitsigns shouldn't throw an error on vim-fugitive buffers

### Actual behavior

Gitsigns throws an error on vim-fugitive buffers

### Minimal config

```Lua
for name, url in pairs({
	gitsigns = "https://github.com/lewis6991/gitsigns.nvim",
	-- ADD OTHER PLUGINS _NECESSARY_ TO REPRODUCE THE ISSUE
	fugitive = "https://github.com/tpope/vim-fugitive",
}) do
	local install_path = vim.fn.fnamemodify("gitsigns_issue/" .. name, ":p")
	if vim.fn.isdirectory(install_path) == 0 then
		vim.fn.system({ "git", "clone", "--depth=1", url, install_path })
	end
	vim.opt.runtimepath:append(install_path)
end

require("gitsigns").setup({
	debug_mode = true, -- You must add this to enable debug messages
	-- ADD GITSIGNS CONFIG THAT IS _NECESSARY_ FOR REPRODUCING THE ISSUE
})

-- ADD INIT.LUA SETTINGS THAT IS _NECESSARY_ FOR REPRODUCING THE ISSUE
```

### Steps to reproduce

1. `git clone https://github.com/lewis6991/gitsigns.nvim`
2. `nvim --clean -u minimal.lua gitsigns.nvim/lua/gitsigns.lua`
3. `:cd %:p:h:h`
4. `:Gedit origin/actionval:lua/`
5. `G` (go to last entry on directory, should be `gitsigns/` )
6. `<cr>` (open `gitsigns/` dir)

The first error is show

7. `:Gedit origin/actionval:.`

The second error is shown

### Gitsigns debug messages

```text
1.72 D dprintf: Deriving GitSignsAdd from Added
1.82 D derive: Deriving GitSignsChange from Changed
1.99 D derive: Deriving GitSignsDelete from Removed
2.04 D derive: Deriving GitSignsChangedelete from GitSignsChange
2.09 D derive: Deriving GitSignsTopdelete from GitSignsDelete
2.15 D derive: Deriving GitSignsUntracked from GitSignsAdd
2.20 D derive: Deriving GitSignsAddNr from GitSignsAdd
2.30 D derive: Deriving GitSignsChangeNr from GitSignsChange
2.39 D derive: Deriving GitSignsDeleteNr from GitSignsDelete
2.42 D derive: Deriving GitSignsChangedeleteNr from GitSignsChangeNr
2.46 D derive: Deriving GitSignsTopdeleteNr from GitSignsDeleteNr
2.53 D derive: Deriving GitSignsUntrackedNr from GitSignsAddNr
2.60 D derive: Deriving GitSignsAddLn from DiffAdd
2.67 D derive: Deriving GitSignsChangeLn from DiffChange
2.75 D derive: Deriving GitSignsChangedeleteLn from GitSignsChangeLn
2.78 D derive: Deriving GitSignsTopdeleteLn from GitSignsDeleteLn
2.82 D derive: Deriving GitSignsUntrackedLn from GitSignsAddLn
2.85 D derive: Deriving GitSignsAddCul from GitSignsAdd
2.98 D derive: Deriving GitSignsChangeCul from GitSignsChange
3.01 D derive: Deriving GitSignsDeleteCul from GitSignsDelete
3.05 D derive: Deriving GitSignsChangedeleteCul from GitSignsChangeCul
3.09 D derive: Deriving GitSignsTopdeleteCul from GitSignsDeleteCul
3.14 D derive: Deriving GitSignsUntrackedCul from GitSignsAddCul
3.17 D derive: Deriving GitSignsStagedAdd from GitSignsAdd
3.21 D derive: Deriving GitSignsStagedChange from GitSignsChange
3.24 D derive: Deriving GitSignsStagedDelete from GitSignsDelete
3.28 D derive: Deriving GitSignsStagedChangedelete from GitSignsChangedelete
3.31 D derive: Deriving GitSignsStagedTopdelete from GitSignsTopdelete
3.39 D derive: Deriving GitSignsStagedUntracked from GitSignsUntracked
3.45 D derive: Deriving GitSignsStagedAddNr from GitSignsAddNr
3.49 D derive: Deriving GitSignsStagedChangeNr from GitSignsChangeNr
3.52 D derive: Deriving GitSignsStagedDeleteNr from GitSignsDeleteNr
3.55 D derive: Deriving GitSignsStagedChangedeleteNr from GitSignsChangedeleteNr
3.59 D derive: Deriving GitSignsStagedTopdeleteNr from GitSignsTopdeleteNr
3.62 D derive: Deriving GitSignsStagedUntrackedNr from GitSignsUntrackedNr
3.65 D derive: Deriving GitSignsStagedAddLn from GitSignsAddLn
3.69 D derive: Deriving GitSignsStagedChangeLn from GitSignsChangeLn
3.73 D derive: Deriving GitSignsStagedChangedeleteLn from GitSignsChangedeleteLn
3.79 D derive: Could not derive GitSignsStagedTopdeleteLn
3.83 D derive: Deriving GitSignsStagedUntrackedLn from GitSignsUntrackedLn
3.88 D derive: Deriving GitSignsStagedAddCul from GitSignsAddCul
3.92 D derive: Deriving GitSignsStagedChangeCul from GitSignsChangeCul
3.95 D derive: Deriving GitSignsStagedDeleteCul from GitSignsDeleteCul
3.99 D derive: Deriving GitSignsStagedChangedeleteCul from GitSignsChangedeleteCul
4.03 D derive: Deriving GitSignsStagedTopdeleteCul from GitSignsTopdeleteCul
4.08 D derive: Deriving GitSignsStagedUntrackedCul from GitSignsUntrackedCul
4.12 D derive: Deriving GitSignsAddPreview from DiffAdd
4.17 D derive: Deriving GitSignsDeletePreview from DiffDelete
4.21 D derive: Deriving GitSignsCurrentLineBlame from NonText
4.25 D derive: Deriving GitSignsAddInline from TermCursor
4.30 D derive: Deriving GitSignsDeleteInline from TermCursor
4.34 D derive: Deriving GitSignsChangeInline from TermCursor
4.38 D derive: Deriving GitSignsAddLnInline from GitSignsAddInline
4.43 D derive: Deriving GitSignsChangeLnInline from GitSignsChangeInline
4.57 D derive: Deriving GitSignsDeleteLnInline from GitSignsDeleteInline
4.62 D derive: Deriving GitSignsDeleteVirtLn from DiffDelete
4.68 D derive: Deriving GitSignsDeleteVirtLnInLine from GitSignsDeleteLnInline
4.75 D derive: Deriving GitSignsVirtLnum from GitSignsDeleteVirtLn
15.59 D attach(1): Attaching (trigger=BufReadPost)
15.82 D run_job: git --version
42.33 D run_job: git --no-pager --no-optional-locks --literal-pathspecs -c gc.auto=0 rev-parse --show-toplevel --absolute-git-dir --abbrev-ref HEAD
44.90 D run_job: git --no-pager --no-optional-locks --literal-pathspecs -c gc.auto=0 --git-dir /tmp/gitsigns.nvim/.git config user.name
47.10 D run_job: git --no-pager --no-optional-locks --literal-pathspecs -c gc.auto=0 --git-dir /tmp/gitsigns.nvim/.git -c core.quotepath=off ls-files --stage --others --exclude-standard --eol /tmp/gitsigns.nvim/lua/gitsigns.lua
51.31 D watch_gitdir(1): Watching git dir
51.48 D run_job: git --no-pager --no-optional-locks --literal-pathspecs -c gc.auto=0 --git-dir /tmp/gitsigns.nvim/.git show 4ea369a5c61dae12c62b39fcc9a7fdb99ddc6474
58.25 D run_job: git --no-pager --no-optional-locks --literal-pathspecs -c gc.auto=0 --git-dir /tmp/gitsigns.nvim/.git show HEAD:lua/gitsigns.lua
16350.47 D attach(2): Attaching (trigger=BufReadPost)
16350.62 D parse_git_path: Fugitive buffer for file '' from path 'nil' on commit '8cb80be5a0f4c8b0fdd35c7858ed126eda792129'
16355.39 D run_job: git --no-pager --no-optional-locks --literal-pathspecs -c gc.auto=0 --git-dir /tmp/gitsigns.nvim/.git rev-parse --show-toplevel --absolute-git-dir --abbrev-ref HEAD
16357.90 D run_job: git --no-pager --no-optional-locks --literal-pathspecs -c gc.auto=0 --git-dir /tmp/gitsigns.nvim/.git config user.name
16360.66 D run_job: git --no-pager --no-optional-locks --literal-pathspecs -c gc.auto=0 --git-dir /tmp/gitsigns.nvim/.git -c core.quotepath=off ls-tree 8cb80be5a0f4c8b0fdd35c7858ed126eda792129 
16363.31 E /tmp/gitsigns_issue/gitsigns//lua/gitsigns/git.lua<206>: fatal: empty string is not a valid pathspec. please use . instead if you meant to match all paths

stack traceback:
	/tmp/gitsigns_issue/gitsigns//lua/gitsigns/debug/log.lua:134: in function 'eprint'
	/tmp/gitsigns_issue/gitsigns//lua/gitsigns/debug/log.lua:141: in function 'eprint'
	/tmp/gitsigns_issue/gitsigns//lua/gitsigns/git.lua:206: in function 'file_info'
	/tmp/gitsigns_issue/gitsigns//lua/gitsigns/git.lua:82: in function 'update'
	/tmp/gitsigns_issue/gitsigns//lua/gitsigns/git.lua:431: in function 'new'
	/tmp/gitsigns_issue/gitsigns//lua/gitsigns/attach.lua:221: in function 'fn'
	/tmp/gitsigns_issue/gitsigns//lua/gitsigns/debounce.lua:68: in function 'attach_throttled'
	/tmp/gitsigns_issue/gitsigns//lua/gitsigns/attach.lua:374: in function </tmp/gitsigns_issue/gitsigns//lua/gitsigns/attach.lua:373>
34948.91 D attach(5): Attaching (trigger=BufReadPost)
34949.01 D parse_git_path: Fugitive buffer for file 'lua/' from path 'nil' on commit '8cb80be5a0f4c8b0fdd35c7858ed126eda792129'
34951.79 D run_job: git --no-pager --no-optional-locks --literal-pathspecs -c gc.auto=0 --git-dir /tmp/gitsigns.nvim/.git rev-parse --show-toplevel --absolute-git-dir --abbrev-ref HEAD
34954.57 D run_job: git --no-pager --no-optional-locks --literal-pathspecs -c gc.auto=0 --git-dir /tmp/gitsigns.nvim/.git -c core.quotepath=off ls-tree 8cb80be5a0f4c8b0fdd35c7858ed126eda792129 lua/
34958.02 D attach(5): Not a file
92323.92 D attach(7): Attaching (trigger=BufReadPost)
92324.02 D parse_git_path: Fugitive buffer for file 'lua/gitsigns' from path 'nil' on commit '8cb80be5a0f4c8b0fdd35c7858ed126eda792129'
92327.42 D run_job: git --no-pager --no-optional-locks --literal-pathspecs -c gc.auto=0 --git-dir /tmp/gitsigns.nvim/.git rev-parse --show-toplevel --absolute-git-dir --abbrev-ref HEAD
92330.14 D run_job: git --no-pager --no-optional-locks --literal-pathspecs -c gc.auto=0 --git-dir /tmp/gitsigns.nvim/.git -c core.quotepath=off ls-tree 8cb80be5a0f4c8b0fdd35c7858ed126eda792129 lua/gitsigns
158400.57 D cli.run: Running action 'debug_messages' with arguments {}
170233.42 D cli.run: Running action 'debug_messages' with arguments {}
232019.65 D cli.run: Running action 'debug_messages' with arguments {}
```

### Gitsigns cache

```lua

```

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Uh oh!

Wrong assertion on fugitive directory buffers #1198

Description

Neovim version

Operating system and version

Expected behavior

Actual behavior

Minimal config

Steps to reproduce

Gitsigns debug messages

Gitsigns cache

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Uh oh!

Wrong assertion on fugitive directory buffers #1198

Description

Description

Neovim version

Operating system and version

Expected behavior

Actual behavior

Minimal config

Steps to reproduce

Gitsigns debug messages

Gitsigns cache

Metadata

Metadata

Assignees

Labels

Projects

Milestone

Relationships

Development

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