Enter # or ## or ### then space and you are locked and can't type

Not sure if this is a bug in fizzy or lexxy, but I noticed that trying to use markdown titles blocks you from typing and can't escape from that state

https://github.com/user-attachments/assets/dee1c867-f24a-4062-a0a5-2cd46117d0ce

Start by reproducing the issue in the Fizzy editor with “# ”, “## ”, and “### ”, then determine whether the behavior belongs to Fizzy or Lexxy. Done means typing remains possible after entering a markdown heading trigger and the editor can be exited from that state.

Written by the indexing model from the issue text.