Inkscape snap crashes when attempting to save

To reproduce:

  1. Start Inkscape
  2. Click File -> Save As

Result: Inkscape immediately crashes with the following errors:

(org.inkscape.Inkscape:2260611): GLib-GIO-WARNING **: 15:44:35.226: Error creating IO channel for /proc/self/mountinfo: Permission denied (g-file-error-quark, 2)

(org.inkscape.Inkscape:2260611): GLib-GIO-ERROR **: 15:44:35.286: Settings schema 'org.gtk.Settings.FileChooser' does not contain a key named 'show-type-column'
Trace/breakpoint trap (core dumped)

As usual for snaps, there is no indication of who I should report this to. In addition, searching for any similar reports is impossible because “inkscape snap” returns 2000 pages of results about the snap feature inside inkscape.

Found the upstream issue: