Shows only true missing objects, fixes #34

also correctly scopes deleted for followed fields

reversion_compare/admin.py

@@ -147,6 +147,7 @@ def get_many_to_something(self, ids, related_model, is_reverse=False):
 
         missing_objects = []
         missing_ids = []
+        deleted = []
 
         if self.field_name not in self.adapter.follow:
             # This models was not registered with follow relations
@@ -160,9 +161,16 @@ def get_many_to_something(self, ids, related_model, is_reverse=False):
                 missing_objects = related_model.objects.all().filter(pk__in=missing_ids1)
                 missing_ids = list(target_ids.difference(set(missing_objects.values_list('pk', flat=True))))
 
-        deleted = []
-        if is_reverse:
-            deleted = [d for d in reversion.get_deleted(related_model) if d.revision == old_revision]
+            if is_reverse:
+                true_missing_objects = []
+                for o in missing_objects:
+                    for ver in reversion.get_for_object(o):
+                        # An object can only be missing if it actually existed prior to this version
+                        # Otherwise its a new item
+                        if ver.revision.date_created < version.revision.date_created:
+                            true_missing_objects.append(o)
+                missing_objects = true_missing_objects
+                deleted = [d for d in reversion.get_deleted(related_model) if d.revision == old_revision]
         return versions, missing_objects, missing_ids, deleted
 
     def get_debug(self):