patch 8.2.3236: mode() does not indicate using CTRL-O in Select mode

Problem:    mode() does not indicate using CTRL-O in Select mode.
Solution:   Use "vs" and similar. (closes #8640)

src/version.c

@@ -755,6 +755,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    3236,
 /**/
     3235,
 /**/