There is a possibility that the _get_caps impl will be called with the feature in the filter caps which when interecting with the template, will return EMPTY and therefore fail negotiation. https://bugzilla.gnome.org/show_bug.cgi?id=757854
There is a possibility that the _get_caps impl will be called with the feature in the filter caps which when interecting with the template, will return EMPTY and therefore fail negotiation. https://bugzilla.gnome.org/show_bug.cgi?id=757854