vim-patch:7.4.2309

Problem:    Crash when doing tabnext in a BufUnload autocmd. (Dominique Pelle)
Solution:   When detecting that the tab page changed, don't just abort but
            delete the window where w_buffer is NULL.

11fbc2866c

src/nvim/version.c

@@ -132,7 +132,7 @@ static int included_patches[] = {
   // 2312,
   // 2311,
   // 2310 NA
-  // 2309,
+  2309,
   // 2308 NA
   // 2307,
   // 2306,