patch 8.2.3591: no event is triggered when closing a window Commit: https://github.com/vim/vim/commit/23beefed73aadb243fb67cf944e3d60fe8c038bb Author: naohiro ono <obcat@icloud.com> Date: Sat Nov 13 12:38:49 2021 +0000 patch 8.2.3591: no event is triggered when closing a window Problem: No event is triggered when closing a window. Solution: Add the WinClosed event. (Naohiro Ono, closes https://github.com/vim/vim/issues/9110)