widget-factory: Avoid a crash
widget-factory: Avoid a crash

We want to be able to show the dialogs more than once, so just
hide them on delete.

jadahl/gtk,grubersjoe/adwaita,chergert/gtk,Lyude/gtk-,grubersjoe/adwaita,alexlarsson/gtk,ahodesuka/gtk,davidgumberg/gtk,jigpu/gtk,davidgumberg/gtk,Adamovskiy/gtk,chergert/gtk,jadahl/gtk,jigpu/gtk,davidgumberg/gtk,davidgumberg/gtk,alexlarsson/gtk,jigpu/gtk,Adamovskiy/gtk,chergert/gtk,Adamovskiy/gtk,jessevdk/gtk,chergert/gtk,ahodesuka/gtk,davidgumberg/gtk,grubersjoe/adwaita,ahodesuka/gtk,alexlarsson/gtk,grubersjoe/adwaita,alexlarsson/gtk,davidgumberg/gtk,Lyude/gtk-,Lyude/gtk-,chergert/gtk,Lyude/gtk-,jessevdk/gtk,jessevdk/gtk,chergert/gtk,grubersjoe/adwaita,alexlarsson/gtk,Adamovskiy/gtk,jessevdk/gtk,Lyude/gtk-,jadahl/gtk,chergert/gtk,ahodesuka/gtk,Adamovskiy/gtk,jessevdk/gtk,jadahl/gtk,alexlarsson/gtk,jigpu/gtk,jigpu/gtk,Adamovskiy/gtk,alexlarsson/gtk,ahodesuka/gtk,Adamovskiy/gtk,ahodesuka/gtk,davidgumberg/gtk,grubersjoe/adwaita,davidgumberg/gtk,jessevdk/gtk,Lyude/gtk-,jadahl/gtk,Lyude/gtk-,chergert/gtk,jigpu/gtk,grubersjoe/adwaita,jadahl/gtk,alexlarsson/gtk,jadahl/gtk,ahodesuka/gtk,jigpu/gtk,jadahl/gtk,Adamovskiy/gtk,grubersjoe/adwaita,Lyude/gtk-,jigpu/gtk,jessevdk/gtk,ahodesuka/gtk