commit https://github.com/vim/vim/commit/62ef797496c6243d111c596a592a8ef8c1d1e710 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jan 19 14:51:54 2016 +0100 patch 7.4.1137 Problem: Illegal memory access when using :copen and :cclose. Solution: Avoid that curbuf is invalid. (suggestion by Justin M. Keyes) Add a test.

--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1137,
+/**/
     1136,
 /**/
     1135,