FIX: remove did not work if an object is passed

src/caosdb/common/models.py

@@ -1599,6 +1599,7 @@ class _Properties(list):
         if isinstance(prop, Entity):
             if prop in self:
                 list.remove(self, prop)
+                return
             else:
                 if prop.id is not None:
                     # by id