patch 9.0.1142: crash and/or memory leak when redefining function

Problem:    Crash and/or memory leak when redefining function after error.
Solution:   Clear pointer after making a copy.  Clear arrays on failure.
            (closes #11774)
diff --git a/src/version.c b/src/version.c
index 3bfa6d4..df02bb8 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1142,
+/**/
     1141,
 /**/
     1140,