Found a niche 'bug':
steps to reproduce:
start a chat with the code assistant. wait for the reply the come in.
then change the assistant from code to something else. Send a message. wait for the response to come in.
Then edit the last message you sent and change the assistant to code.
now if you send that message, the message will show that it's come from claude sonnet instead of code
https://kagi.com/assistant/bc7bdaae-84ae-4d8f-b667-21a8b57b44a3