label: Fix another sizing corner case causing segfaults
label: Fix another sizing corner case causing segfaults

If the "wider" label is the smaller one, use the wider size for both
cases. This can happen when ellipsizing a single character, which is
often smaller than the ellipsizing glpyph(s).

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