Initializing all vertices from the original could allocater vertex groups into the custom-data which were later overwritten witout freeing. The leak happened in the test file: .../lib/tests/modifier_stack/explode_modifier.blend
Initializing all vertices from the original could allocater vertex groups into the custom-data which were later overwritten witout freeing. The leak happened in the test file: .../lib/tests/modifier_stack/explode_modifier.blend