patch 8.2.4139: using freed memory in expression abbreviation

Problem:    Using freed memory if an expression abbreviation deletes the
            abbreviation.
Solution:   Do not access the pointer after evaluating the expression.

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    4139,
 /**/
     4138,
 /**/