FB15131180 TextKit extra line frame is incorrect and does not respect layout fragment size

Author: krzyzanowskim

README.md

@@ -197,6 +197,7 @@ List of **TextKit 2** issues and bugs related to NSTextView and the TextKit fram
 - [FB13291926](https://gist.github.com/krzyzanowskim/33a2478fa2281b77816acb7a7f6f77ac): NSTextLayoutManager.usageBoundsForTextContainer observer is never trigerred
 - [FB13789916](https://gist.github.com/krzyzanowskim/340c5810fc427e346b7c4b06d46b1e10): NSTextInputClient.setMarkedText provide bogus selection range for Chinese keyboard
 - [FB14700414](https://gist.github.com/krzyzanowskim/0a83eb9d5303016b277920a6b7c9f9fc): NSTextList doesn't work since macOS 14 (regression)
+- [FB15131180](https://gist.github.com/krzyzanowskim/510ecf8df259d779e22df8ad13c256c0): TextKit extra line frame is incorrect and does not respect layout fragment size (regression)
 
 ... I'm aware that the list of issues is not complete. I managed to workaround most of the problems in STTextView.