Pasting HTML tags into a Confluence table can cause the editor to lock up

Easiest way to replicate this is to create a new 2 cell table, then past '<tag>' into both cells - the editor should lock up on the second. Cancelling the edit will restore functionality.

Note that this wasn't completely reproducible - pasting into existing cells sometimes worked, and sometimes it locked up even if pasting outside of the table. The only reliable way I found to replicate it was outlined above.

Editor acts as expected in Confluence 4.1.9..