fix: tests were a mess and didn't properly test the functionality but random things that worked with implementation

music_kraken/objects/collection.py

@@ -115,7 +115,6 @@ class Collection(Generic[T]):
         self._data.append(other)
         other._inner._is_in_collection.add(self)
 
-        """
         for attribute, a in self.sync_on_append.items():
             # syncing two collections by reference
             b = other.__getattribute__(attribute)
@@ -134,7 +133,6 @@ class Collection(Generic[T]):
                 a._collection_for[synced_with] = key
 
             a.extend(b_data, **kwargs)
-        """
 
         # all of the existing hooks to get the defined datastructures
         for collection_attribute, generator in self.extend_object_to_attribute.items():
@@ -162,24 +160,6 @@ class Collection(Generic[T]):
 
         object_trace(f"Appending {other.option_string} to {self}")
 
-        for attribute, a in self.sync_on_append.items():
-            # syncing two collections by reference
-            b = other.__getattribute__(attribute)
-            if a is b:
-                continue
-
-            object_trace(f"Syncing [{a}] = [{b}]")
-
-            b_data = b.data.copy()
-            b_collection_for = b._collection_for.copy()
-
-            del b
-
-            for synced_with, key in b_collection_for.items():
-                synced_with.__setattr__(key, a)
-                a._collection_for[synced_with] = key
-
-            a.extend(b_data, **kwargs)
 
         # switching collection in the case of push to
         for c in self.push_to: