file chooser: Don't switch too eagerly to search mode
file chooser: Don't switch too eagerly to search mode

If the search entry doesn't consume the key event, don't
change to search mode. Otherwise, we interfere e.g. with
Ctrl and Shift keys for selection.

https://bugzilla.gnome.org/show_bug.cgi?id=743660

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