Sometimes, inside the edit agent, Sonnet thinks that it's doing a tool
call and closes its response with `</parameter></invoke>` instead of
properly closing </new_text>.
A better but more labor-intensive way of fixing this would be switching
to streaming tool calls for LLMs that support it.
Closes#39921
Release Notes:
- Fixed Sonnet's regression with inserting `</parameter></invoke>`
sometimes
Oleksiy Syvokon
Bennet Fenner