Changed the implementation of Submission.latest_checks() to also return None checks, so it's possible to update a Passed due to no yang modules to a None (no modules to check).

 - Legacy-Id: 13698

Author: levkowetz

ietf/submit/models.py

@@ -66,7 +66,7 @@ def existing_document(self):
         return Document.objects.filter(name=self.name).first()
 
     def latest_checks(self):
-        checks = [ self.checks.filter(checker=c, passed__in=[True,False]).latest('time') for c in self.checks.values_list('checker', flat=True).distinct() ]
+        checks = [ self.checks.filter(checker=c).latest('time') for c in self.checks.values_list('checker', flat=True).distinct() ]
         return checks
 
 class SubmissionCheck(models.Model):