Fix bug where prior LSP completions can be displayed after trigger char (#32927)

Bug in #31872

Closes #32774

Release Notes:

- Fixed a bug in LSP completions caching where prior completions may be
used when they should not, after typing a trigger char like `.`
d8eb341f9bMichael Sloan committed on 6/18/2025, 9:01:47 AM· committed by GitHubparent70aab39
1 file changedLine totals unavailable