src/vs/workbench/contrib/comments/browser/commentThreadWidget.ts/CommentThreadWidget/updateCurrentThread
class CommentThreadWidget:	private updateCurrentThread(hasMouse: boolean, hasFocus: boolean) {
		if (hasMouse || hasFocus) {
			this.commentService.setCurrentCommentThread(this.commentThread);
		} else {
			this.commentService.setCurrentCommentThread(undefined);
		}
	}