actor: Correct setting the offscreen-redirect property
actor: Correct setting the offscreen-redirect property

It's a flags property, not an enum one.

https://bugzilla.gnome.org/show_bug.cgi?id=708922

collects/clutter,heysion/clutter-clone,GNOME/clutter,collects/clutter,ebassi/clutter,jigpu/clutter,Distrotech/clutter,GNOME/clutter,jigpu/clutter,ebassi/clutter,jigpu/clutter,jigpu/clutter,heysion/clutter-clone,jigpu/clutter,GNOME/clutter,collects/clutter,Distrotech/clutter,Distrotech/clutter,heysion/clutter-clone,djdeath/clutter,ebassi/clutter,collects/clutter,Distrotech/clutter,jigpu/clutter,collects/clutter,djdeath/clutter,djdeath/clutter,heysion/clutter-clone,Distrotech/clutter,djdeath/clutter,GNOME/clutter,ebassi/clutter,heysion/clutter-clone,djdeath/clutter,GNOME/clutter,ebassi/clutter,Distrotech/clutter,djdeath/clutter