Don't touch private->parent after its been change
Don't touch private->parent after its been change

The backend reparent may change private->parent, so we must use
the old saved value.

ebassi/gtk,Distrotech/gtk,simokivimaki/gtk,Distrotech/gtk2,Unity-Technologies/gtk,jessevdk/gtk,grubersjoe/adwaita,chergert/gtk,Unity-Technologies/gtk,davidt/gtk,jigpu/gtk,Adamovskiy/gtk,Unity-Technologies/gtk,Sidnioulz/SandboxGtk,Adamovskiy/gtk,Lyude/gtk-,jigpu/gtk,ebassi/gtk,ebassi/gtk,jadahl/gtk,jigpu/gtk,johne53/MB3Gtk-2,davidgumberg/gtk,johne53/MB3Gtk-2,chergert/gtk,jadahl/gtk,Lyude/gtk-,grubersjoe/adwaita,ebassi/gtk,grubersjoe/adwaita,Unity-Technologies/gtk,simokivimaki/gtk,ahodesuka/gtk,davidgumberg/gtk,Adamovskiy/gtk,Sidnioulz/SandboxGtk,Sidnioulz/SandboxGtk,jigpu/gtk,chergert/gtk,Adamovskiy/gtk,alexlarsson/gtk,jessevdk/gtk,chipx86/gtk,Lyude/gtk-,bratsche/gtk-,jessevdk/gtk,simokivimaki/gtk,Adamovskiy/gtk,msteinert/gtk,chergert/gtk,jadahl/gtk,jadahl/gtk,Lyude/gtk-,alexlarsson/gtk,msteinert/gtk,Distrotech/gtk2,Distrotech/gtk2,jigpu/gtk,jadahl/gtk,alexlarsson/gtk,nacho/gtk-,jigpu/gtk,nacho/gtk-,Sidnioulz/SandboxGtk,jessevdk/gtk,Unity-Technologies/gtk,davidt/gtk,nacho/gtk-,Distrotech/gtk,grubersjoe/adwaita,Adamovskiy/gtk,zsx/gtk,davidt/gtk,Lyude/gtk-,simokivimaki/gtk,Lyude/gtk-,msteinert/gtk,Distrotech/gtk2,Lyude/gtk-,zsx/gtk,jessevdk/gtk,Distrotech/gtk,chergert/gtk,davidgumberg/gtk,alexlarsson/gtk,davidgumberg/gtk,nacho/gtk-,zsx/gtk,jigpu/gtk,alexlarsson/gtk,simokivimaki/gtk,ahodesuka/gtk,davidgumberg/gtk,bratsche/gtk-,davidgumberg/gtk,ebassi/gtk,chipx86/gtk,grubersjoe/adwaita,Adamovskiy/gtk,jigpu/gtk,alexlarsson/gtk,bratsche/gtk-,Distrotech/gtk,Distrotech/gtk2,alexlarsson/gtk,chergert/gtk,davidgumberg/gtk,jadahl/gtk,chipx86/gtk,ahodesuka/gtk,ahodesuka/gtk,ahodesuka/gtk,bratsche/gtk-,bratsche/gtk-,Sidnioulz/SandboxGtk,jadahl/gtk,davidt/gtk,simokivimaki/gtk,grubersjoe/adwaita,johne53/MB3Gtk-2,davidt/gtk,grubersjoe/adwaita,chergert/gtk,Distrotech/gtk,davidt/gtk,msteinert/gtk,chipx86/gtk,Adamovskiy/gtk,jadahl/gtk,bratsche/gtk-,alexlarsson/gtk,ahodesuka/gtk,msteinert/gtk,davidgumberg/gtk,Lyude/gtk-,johne53/MB3Gtk-2,nacho/gtk-,zsx/gtk,Sidnioulz/SandboxGtk,Distrotech/gtk2,johne53/MB3Gtk-2,chergert/gtk,jessevdk/gtk,grubersjoe/adwaita,chipx86/gtk,zsx/gtk,ahodesuka/gtk,msteinert/gtk,ahodesuka/gtk,ebassi/gtk,jessevdk/gtk