SQLBackend all_edges_as_iterable accesses _node_table instead of _edge_table resulting in KeyError: 'Source' about grand HOT 3 CLOSED

  File ".local/lib/python3.10/site-packages/sqlalchemy/sql/base.py", line 280, in _generative
    x = fn(self, *args, **kw)
  File ".local/lib/python3.10/site-packages/sqlalchemy/sql/selectable.py", line 5915, in with_only_columns
    for c in coercions._expression_collection_was_a_list(
  File ".local/lib/python3.10/site-packages/sqlalchemy/sql/coercions.py", line 152, in _expression_collection_was_a_list
    raise exc.ArgumentError(
sqlalchemy.exc.ArgumentError: The "entities" argument to Select.with_only_columns(), when referring to a sequence of items, is now passed as a series of positional elements, rather than as a list. 

sql = self._node_table.select().with_only_columns(*columns)