patch 8.2.2476: using freed memory when splitting window while closing buffer Commit: https://github.com/vim/vim/commit/983d83ff1cd796ff321074335fa53fbe7ac45a46 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Feb 7 12:12:43 2021 +0100 patch 8.2.2476: using freed memory when splitting window while closing buffer Problem: Using freed memory when using an autocommand to split a window while a buffer is being closed. Solution: Disallow splitting when the buffer has b_locked_split set.

--- a/src/errors.h
+++ b/src/errors.h
@@ -353,3 +353,5 @@ EXTERN char e_missing_return_type[]
 	INIT(= N_("E1157: Missing return type"));
 EXTERN char e_cannot_use_flatten_in_vim9_script[]
 	INIT(= N_("E1158: Cannot use flatten() in Vim9 script"));
+EXTERN char e_cannot_split_window_when_closing_buffer[]
+	INIT(= N_("E1159: Cannot split a window when closing the buffer"));