patch 8.2.2417: condition stack values may be used when not set

Problem:    Condition stack values may be used when not set.
Solution:   Clear cs_script_var_len and cs_block_id just in case they get used
            later. (issue #7733)

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2417,
 /**/
     2416,
 /**/