Using ImGuiWindowFlags_UnsavedDocument on docking branch result in "..." window name display #5745
Description
I just switched to the Docking branch (last commit 69beaa1) and when I use ImGuiWindowFlags_UnsavedDocument as a flag to the window (to show that there are unsaved changes), then the name of the window gets truncated (although it is a small name re-edit and there are no other tabs) as seen in this screenshot. After saving changes, and removing the flag, it gets rendered properly.
It only happens if there is another window docked to that one (whether docking is on the side or a tab).
Prior to switching, I was using v1.88 (master not docking 9aae45e) and there was no problem.
Dear ImGui 1.89 WIP (18828)
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sizeof(size_t): 8, sizeof(ImDrawIdx): 2, sizeof(ImDrawVert): 20
define: __cplusplus=201703
define: __APPLE__
define: __GNUC__=4
define: __clang_version__=11.0.0 (clang-1100.0.33.17)
define: IMGUI_HAS_VIEWPORT
define: IMGUI_HAS_DOCK
--------------------------------
io.BackendPlatformName: imgui_impl_glfw
io.BackendRendererName: imgui_impl_metal
io.ConfigFlags: 0x00000040
DockingEnable
io.ConfigViewportsNoDecoration
io.ConfigDockingWithShift
io.ConfigMacOSXBehaviors
io.ConfigInputTextCursorBlink
io.ConfigWindowsResizeFromEdges
io.ConfigWindowsMoveFromTitleBarOnly
io.ConfigMemoryCompactTimer = 60.0
io.BackendFlags: 0x0000140E
HasMouseCursors
HasSetMousePos
PlatformHasViewports
RendererHasVtxOffset
RendererHasViewports
--------------------------------
io.Fonts: 1 fonts, Flags: 0x00000000, TexSize: 512,256
io.DisplaySize: 1280.00,720.00
io.DisplayFramebufferScale: 2.00,2.00
--------------------------------
style.WindowPadding: 8.00,8.00
style.WindowBorderSize: 1.00
style.FramePadding: 4.00,3.00
style.FrameRounding: 0.00
style.FrameBorderSize: 0.00
style.ItemSpacing: 8.00,4.00
style.ItemInnerSpacing: 4.00,4.00