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)
diff --git a/src/version.c b/src/version.c
index 23b29da..04afe95 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4237,
+/**/
     4236,
 /**/
     4235,