When searching for matching document comments, and rfc_flag is off,

the document_comments table can have either "0" or NULL, so the join
on comments.rfc_flag=self.rfc_flag was skipping the NULL ones.
 - Legacy-Id: 308

Author: fenner

ietf/idtracker/models.py

@@ -455,7 +455,11 @@ def document(self):
 	else:
 	    return self.draft
     def comments(self):
-	return self.documentcomment_set.all().filter(rfc_flag=self.rfc_flag).order_by('-comment_date','-comment_time')
+	if self.rfc_flag == 0:
+	    filter = models.Q(rfc_flag=0)|models.Q(rfc_flag__isnull=True)
+	else:
+	    filter = models.Q(rfc_flag=1)
+	return self.documentcomment_set.all().filter(filter).order_by('-comment_date','-comment_time')
     def ballot_set(self):
 	return IDInternal.objects.filter(ballot=self.ballot_id)
     def ballot_primary(self):