patch 8.2.0452: channel_parse_messages() fails when called recursively

Problem:    channel_parse_messages() fails when called recursively.
Solution:   Return for a recursive call. (closes #5835)
diff --git a/src/version.c b/src/version.c
index 12e287d..94fcb60 100644
--- a/src/version.c
+++ b/src/version.c
@@ -739,6 +739,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    452,
+/**/
     451,
 /**/
     450,