Returning list of clips instances from python does not work

[gitttt]

It seems a bug reported in 2012 has not been fixed yet:
https://sourceforge.net/p/pyclips/discussion/390146/thread/696ae41f/

It seems the corresponding code part has not changed.
https://github.com/almostearthling/pyclips/blob/master/clips/_clips_wrap.py#L592