Issue Summary

If person A views a card then moves it to another board, then person B adds a comment and moves the card back, the comment does not appear on the card back for person A.

Steps to Reproduce

precondition: Have two boards (board A and board B), each with two members (user A and user B)

1. As user A, open a card on board A
2. add a comment and save it
3. select the (...) menu and move the card to board B
4. As user B, open the card on board B
5. Add a comment
6. select the (...) menu and move the card to board A

Expected Results

All comments appear to user A

Actual Results

The comment from user B does not appear for user A, but the comment count on the card front reflects the expected comment count

Workaround

Refresh the board. Though this is not immediatley intuitive because users don't know that a comment should appear there.