Comment reactions and comment deletion don’t update the UI until page refresh

[milvasic]

Pre-submission Checklist

• I have searched the existing issues and this bug has not been reported yet
• I have tested this issue on the demo site or the latest version

Where did you encounter this bug?

• Demo site (demo.usememos.com)
• Self-hosted instance

Memos Version

v0.26.1

Bug Description

On the memo detail page, comment-related actions (adding/removing a reaction on a comment, or deleting a comment) succeed on the server but the UI does not update until the page is refreshed.
The comments list and individual comment cards are driven by a React Query cache that is not invalidated when these actions run, so the client shows stale data.

Steps to Reproduce

1. Open a memo that has at least one comment (or add a comment).
2. Reaction: On one of the comments, add a reaction (e.g. via the reaction selector in the comment header).
   • Observe: The new reaction does not appear on the comment until you refresh the page.
3. Delete: Open the action menu (⋮) on a comment and choose “Delete”, then confirm.
   • Observe: The comment remains visible in the list until you refresh the page.

Expected Behavior

After adding or removing a reaction on a comment, the comment’s reactions update immediately.
After deleting a comment, the comment disappears from the list immediately.

Screenshots & Additional Context

No response

[milvasic]

Technical note

The comment list on the memo detail page is loaded with useMemoComments(parentMemoName) (query key memoKeys.comments(parentName)).
The mutation paths for “reaction on memo” and “delete memo” only updated/invalidated memoKeys.detail and memoKeys.lists(), and did not invalidate memoKeys.comments(parentName), so the comments query was never refetched and the UI stayed stale.

Fix: invalidate the parent’s comments query when updating reactions on a comment or when deleting a comment (when memo.parent is set).

[chez14]

Might be related but still not sure. When I edit the parent memo (that has comment), I need to refresh the page too.

I'll try something before reporting more details. Let me know if it is better to report this to a new issue.