Bug 320529: BugMail.pm crashes when checking email prefs of a deleted user - Patch by Fr�d�ric Buclin <LpSolit@gmail.com> r=wicked a=justdave

webtools/bugzilla/Bugzilla/BugMail.pm

@@ -414,7 +414,9 @@ sub ProcessOneBug {
         my $sent_mail = 0;
 
         my $user = new Bugzilla::User($user_id);
-        
+        # Deleted users must be excluded.
+        next unless $user;
+
         if ($user->can_see_bug($id))
         {
             # Go through each role the user has and see if they want mail in