[gi-invoke-ng] don't decref value taken from a dict as it is borrowed
[gi-invoke-ng] don't decref value taken from a dict as it is borrowed

davibe/pygobject,sfeltman/pygobject,pexip/pygobject,davidmalcolm/pygobject,davidmalcolm/pygobject,GNOME/pygobject,sfeltman/pygobject,davidmalcolm/pygobject,GNOME/pygobject,choeger/pygobject-cmake,choeger/pygobject-cmake,MathieuDuponchelle/pygobject,choeger/pygobject-cmake,pexip/pygobject,jdahlin/pygobject,thiblahute/pygobject,davibe/pygobject,pexip/pygobject,GNOME/pygobject,MathieuDuponchelle/pygobject,thiblahute/pygobject,sfeltman/pygobject,davibe/pygobject,jdahlin/pygobject,MathieuDuponchelle/pygobject,davibe/pygobject,jdahlin/pygobject,thiblahute/pygobject