The design of DefaultShowFullName has some problems, which make the UI
inconsistent, see the new comment in code
This PR does a clean up for various legacy problems, and clarify some
"user name display" behaviors.
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Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
The old logic is incomplete. See the comment for the improved logic.
Fix#34011
And more fixes:
1. use empty "alt" for images, otherwise the width is not right when the
image fails to load
2. remove the "dropdown icon" patch, because it has been clearly done in
"dropdown.js" now
3. remove the "dropdown filtered item" patch, added a clear callback,
and improve the logic
4. fix global init when a node is removed and added back gain (eg: the
"cherry pick" dialog with a dropdown)
Remove unmaintainable sanitizer rules. No need to add special "class"
regexp rules anymore, use RenderInternal.SafeAttr instead, more details
(and examples) are in the tests
