/var/lib/gforge/plugins/moinmoin/wikidata/moin.wsgi is in fusionforge-plugin-moinmoin 5.3.2+20141104-3+deb8u3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/gforge/plugins/moinmoin/wsgi/moin.wsgi