patch 9.1.0665: Locked variable can be changed in a :for loop

Problem:  Locked variable can be changed in a :for loop.
Solution: Always do a full permission check on the first loop iteration
          where ASSIGN_DECL is not set (zeertzjq).

related: #12470
fixes: #15450
closes: #15454

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index ce5894f..1b7e423 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    665,
+/**/
     664,
 /**/
     663,