Fix a copy-paste error
Fix a copy-paste error

We were notifying can-focus when can-default changes.
Unit tests save the day.

grubersjoe/adwaita,grubersjoe/adwaita,davidgumberg/gtk,jadahl/gtk,davidgumberg/gtk,davidgumberg/gtk,alexlarsson/gtk,alexlarsson/gtk,jadahl/gtk,alexlarsson/gtk,jigpu/gtk,davidgumberg/gtk,grubersjoe/adwaita,jadahl/gtk,jadahl/gtk,grubersjoe/adwaita,alexlarsson/gtk,alexlarsson/gtk,jigpu/gtk,jadahl/gtk,jadahl/gtk,grubersjoe/adwaita,davidgumberg/gtk,davidgumberg/gtk,grubersjoe/adwaita,alexlarsson/gtk,jigpu/gtk,jigpu/gtk,alexlarsson/gtk,jigpu/gtk,jigpu/gtk,grubersjoe/adwaita,alexlarsson/gtk,jadahl/gtk,davidgumberg/gtk,jigpu/gtk,jigpu/gtk,davidgumberg/gtk,jadahl/gtk,grubersjoe/adwaita