patch 8.2.4237: record buffer wrong if character in Select mode was not typed

Problem:    Record buffer wrong if character in Select mode was not typed.
Solution:   Only delete the tail from the record buffer if the character was
            typed. (closes #9650)

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    4237,
 /**/
     4236,
 /**/