filechooserbutton: Keep track of the current_folder while the dialog is inactive
filechooserbutton: Keep track of the current_folder while the dialog is inactive

This is analogous to keeping the selection while the dialog is inactive.

Signed-off-by: Federico Mena Quintero <4999915a961edfd7686112c2935288e1266eae14@gnome.org>

chergert/gtk,bratsche/gtk-,msteinert/gtk,chergert/gtk,jigpu/gtk,ebassi/gtk,msteinert/gtk,Sidnioulz/SandboxGtk,jadahl/gtk,Lyude/gtk-,ahodesuka/gtk,jadahl/gtk,ebassi/gtk,Sidnioulz/SandboxGtk,msteinert/gtk,Lyude/gtk-,alexlarsson/gtk,chergert/gtk,grubersjoe/adwaita,jessevdk/gtk,jessevdk/gtk,jadahl/gtk,ahodesuka/gtk,grubersjoe/adwaita,davidt/gtk,msteinert/gtk,Adamovskiy/gtk,Lyude/gtk-,alexlarsson/gtk,alexlarsson/gtk,ahodesuka/gtk,davidgumberg/gtk,jessevdk/gtk,Sidnioulz/SandboxGtk,msteinert/gtk,jadahl/gtk,davidgumberg/gtk,chergert/gtk,chergert/gtk,davidt/gtk,bratsche/gtk-,davidt/gtk,bratsche/gtk-,davidgumberg/gtk,alexlarsson/gtk,jigpu/gtk,Adamovskiy/gtk,bratsche/gtk-,davidgumberg/gtk,grubersjoe/adwaita,grubersjoe/adwaita,jessevdk/gtk,jigpu/gtk,Lyude/gtk-,davidt/gtk,Distrotech/gtk2,grubersjoe/adwaita,ahodesuka/gtk,davidt/gtk,davidgumberg/gtk,Lyude/gtk-,Lyude/gtk-,davidgumberg/gtk,grubersjoe/adwaita,davidgumberg/gtk,chergert/gtk,jigpu/gtk,Adamovskiy/gtk,chergert/gtk,jadahl/gtk,ahodesuka/gtk,grubersjoe/adwaita,ebassi/gtk,grubersjoe/adwaita,msteinert/gtk,jessevdk/gtk,jigpu/gtk,Distrotech/gtk2,Adamovskiy/gtk,ebassi/gtk,ahodesuka/gtk,Adamovskiy/gtk,jigpu/gtk,ebassi/gtk,Sidnioulz/SandboxGtk,Adamovskiy/gtk,Distrotech/gtk2,jigpu/gtk,alexlarsson/gtk,jadahl/gtk,alexlarsson/gtk,Distrotech/gtk2,Distrotech/gtk2,Sidnioulz/SandboxGtk,Adamovskiy/gtk,alexlarsson/gtk,ebassi/gtk,Lyude/gtk-,ahodesuka/gtk,jigpu/gtk,jessevdk/gtk,Sidnioulz/SandboxGtk,jessevdk/gtk,alexlarsson/gtk,Adamovskiy/gtk,Distrotech/gtk2,jadahl/gtk,ahodesuka/gtk,bratsche/gtk-,jadahl/gtk,bratsche/gtk-,davidt/gtk,Lyude/gtk-,davidgumberg/gtk,chergert/gtk