Avoid a double unref and a possible unallowed unref
Avoid a double unref and a possible unallowed unref

The unallowed unref comes from the GTypeModule
and the fact that it cannot be unreffed after certain
things happen but the documentation is not specific
about it.
gregier/libpeas,Distrotech/libpeas,gregier/libpeas,gregier/libpeas,GNOME/libpeas,chergert/libpeas,Distrotech/libpeas,chergert/libpeas,Distrotech/libpeas,chergert/libpeas,GNOME/libpeas,gregier/libpeas