fix - return none on get stat on quota

apps/product/models.py

@@ -544,7 +544,11 @@ class Quota(BaseModel):
             org = self.registerer_organization
             stat = OrganizationQuotaStats.objects.filter(
                 quota=self,
+                organization=org
             )
+        # first quota created is none stat on attribute & broker value table
+        if stat.stat_type == 'quota':
+            return None
         return stat.first() if stat.exists() else None
 
     def soft_delete(self):