patch 9.0.1050: using freed memory when assigning to variable twice

Problem:    Using freed memory when assigning to variable twice.
Solution:   Make copy of the list type. (closes #11691)

src/version.c

@@ -695,6 +695,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1050,
 /**/
     1049,
 /**/