def test_do_not_copy_source_block_reference():
e = DXFEntity()
insert = Insert()
e.set_source_block_reference(insert)
copy = e.copy()
assert copy.has_source_block_reference is False
assert copy.source_block_reference is None
def copy_entity(self, entity: DXFEntity) -> int:
"""Copy a single entity and returns the id or 0 if the entity is
already copied.
"""
if id(entity) in self._copies:
return 0
self._copies[id(entity)] = entity.copy()
return id(entity)