release-notes: fix warning

Follow-up to 2ec54556d4e3f3ab551b5

Closes #18133

diff --git a/scripts/release-notes.pl b/scripts/release-notes.pl
index 331941bc9baf01e9597f7cb1ef3c4175bbb30603..593d7965a308ea7e5d5fdad082a49ec586a2245b 100755 (executable)
--- a/scripts/release-notes.pl
+++ b/scripts/release-notes.pl
@@ -219,7 +219,9 @@ for my $l (@releasenotes) {
 
             push @o, sprintf " o %s%s\n", $f,
                 $moreinfo{$f}? sprintf(" [%d]", $moreinfo{$f}): "";
-            $refused[$moreinfo{$f}]=3;
+            if($moreinfo{$f}) {
+                $refused[$moreinfo{$f}]=3;
+            }
         }
         push @o, " --- new entries are listed above this ---";
         next;