patch 9.0.0550: crash when closing a tabpage and buffer is NULL Commit: https://github.com/vim/vim/commit/62de54b48d6354d4622ec0b21ffa4cf3cf312505 Author: zeertzjq <zeertzjq@outlook.com> Date: Thu Sep 22 18:08:37 2022 +0100 patch 9.0.0550: crash when closing a tabpage and buffer is NULL Problem: Crash when closing a tabpage and buffer is NULL. Solution: Adjust how autocommands are triggered when closing a window. (closes #11198, closes #11197)