fix: disposing workspace comments. #7264
Merged
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The basics
npm run format
andnpm run lint
The details
Resolves
Fixes #7177
Proposed Changes
Makes it the sole responsibility of the WorkspaceComment superclass to mark the comment as disposed, instead of letting the subclass mark it as disposed before the superclass has a chance to handle disposing it.
Behavior Before Change
The superclass's dispose method did not actually run, and the comment would not be completely disposed.
Behavior After Change
Deleting a comment now fully disposes it.
Test Coverage
Previously there was test coverage for disposing WorkspaceComment, but not for disposing WorkspaceCommentSvg. I added a method testing the latter.