Don't crash when loading scenes that don't exist on disk
Don't crash when loading scenes that don't exist on disk

Dangling pointers will be the death of me yet ;)

KDE/gluon,KDE/gluon,pranavrc/example-gluon,KDE/gluon,pranavrc/example-gluon,pranavrc/example-gluon,KDE/gluon,pranavrc/example-gluon