Text flickers in TextBlock with TextTrimming enabled when changing DataContext and dynamically rearranging

[BAndysc]

Describe the bug

TextBlock is not rendered correctly when changing its DataContext in panel ArrangeOverride.

To Reproduce

Steps to reproduce the behavior:

Unfortunately this bug didn't occur when I extracted the control to a separate project, it might be related to the hierarchy of the components in the real app (Dock control involved etc), but the app is open source, so you can reproduce it:

1. Clone https://github.com/BAndysc/WoWDatabaseEditor
2. Checkout branch avalonia11-bug
3. Pull submodules: git submodule update --init --recursive
4. Run LoaderAvalonia project
5. In the left tool panel, switch to Tables panel and select "Avalonia 11 bug Demo" from the combo box
   
6. Shrink the panel so that the texts start to collapse
7. Start scrolling. Note: it rarely happens when scrolling down, mostly when scrolling up.

Expected behavior

Text shouldn't flicker.

Info about the code:

The offending view is in file Avalonia11BugDemoView. The control that runs the tree is my custom VirtualizedTreeView, which virtualizes VirtualizedTreeViewItem by iterating through ItemsSource in ArrangeOverride and arranges only visible items and sets their DataContext. I don't think it is illegal?

Screenshots

11.1.999-cibuild0045529-beta:

Screen.Recording.2024-03-04.at.12.04.31.mov

I feel like this PR changed the flickering a bit #14806 But it still occurs
11.1.999-cibuild0045561-beta:

Screen.Recording.2024-03-04.at.12.01.07.mov

Note: when I expanded the panel so that the texts no longer collapse, there is no flickering

Environment

• OS: macOS
• Avalonia-Version: 11.1.999-cibuild0045561-beta, 11.1.999-cibuild0045529-beta

Additional context

Note: when I set TextTrimming to None, there is no flickering.

[maxkatz6]

It might be related to text layout invalidation as another similar issue before @Gillibald. It was fixed by #14705.