small refactor in as_operations to prepare for m2m

src/c3nav/editor/changes.py

@@ -589,13 +589,15 @@ class ChangedObjectCollection(BaseSchema):
                 ended_situations.append(situation)
 
         if done_situation:
-            result = DatabaseOperationCollection(
+            operations = done_situation.operations
-                prev=self.prev,
+        else:
-            )
+            # todo: what to do if we can't fully solve it?
-            result.extend(done_situation.operations)
+            raise NotImplementedError('couldnt fully solve as_operations')
-            return result
 
         # todo: m2m
 
-        # todo: what to do if we can't fully solve it?
+        result = DatabaseOperationCollection(
-        raise NotImplementedError('couldnt fully solve as_operations')
+            prev=self.prev,
+        )
+        result.extend(operations)
+        return result