unrecognized entry in undo list undo-tree-canary #9903
Description
Description 
undo-tree often errors with unrecognized entry in undo list undo-tree-canary.
See: #298 #774
https://lists.gnu.org/archive/html/bug-gnu-emacs/2014-01/msg01106.html
From what I can tell, you can't exclude the package (adding it to
dotspacemacs-excluded-packages doesn't have any effect.)
For now, I'm using:
(global-undo-tree-mode -1)
Which reverts me back to the normal undo ring as far as I can tell.
Reproduction guide 🪲
- Start Emacs
- Use it regularly, undoing stuff and attempting to redo it.
- Keep using it until you hit this issue.
Observed behaviour: 👀 💔
Undo breaks randomly and you lose work.
Expected behaviour: ❤️ 😄
Undo does not break.
System Info 💻
- OS: darwin
- Emacs: 26.0.90
- Spacemacs: 0.300.0
- Spacemacs branch: develop (rev. d475a1b)
- Graphic display: t
- Distribution: spacemacs
- Editing style: hybrid
- Completion: ivy
- Layers:
(octave swift nginx better-defaults spacemacs-layouts ivy
(markdown :variables markdown-live-preview-engine 'vmd)
(syntax-checking :variables syntax-checking-enable-tooltips t)
(auto-completion :variables auto-completion-enable-sort-by-usage t auto-completion-enable-snippets-in-popup nil spacemacs-default-company-backends
'(company-capf
(company-dabbrev-code company-keywords)
company-files company-dabbrev))
git dash pdf-tools html
(org :variables org-enable-github-support t org-enable-reveal-js-support t org-want-todo-bindings t)
colors
(osx :variables osx-command-as 'super)
github
(shell :variables shell-default-shell 'ansi-term shell-default-height 30 shell-default-position 'bottom)
(spell-checking :variables spell-checking-enable-by-default nil)
version-control rcirc tmux yaml docker restclient lua chrome
(unicode-fonts :variables unicode-fonts-force-multi-color-on-mac t)
emoji evil-little-word aj-elixir aj-emacs-lisp aj-javascript aj-typescript aj-ruby auto-correct cleverparens-lispy flow match-indent shift-number writing)- System configuration features: JPEG RSVG IMAGEMAGICK NOTIFY ACL GNUTLS LIBXML2 ZLIB TOOLKIT_SCROLL_BARS NS MODULES LCMS2
Backtrace 🐾
<<BACKTRACE IF RELEVANT>>