run: Handle the case where /tmp on the host is a symlink
run: Handle the case where /tmp on the host is a symlink

If the app explicitly grants access to the host /tmp (for
instance telegram) then when this is being exposed as a symlink
in the sandbox we get an error because /tmp already exists
as a dir, which we create very early on.

It doesn't really make sense to keep /tmp as a symlink in
the sandbox anyway, so we just special case this and mount
the symlink target as /tmp.

GeorgesStavracas/flatpak,flatpak/flatpak,flatpak/flatpak,GeorgesStavracas/flatpak,flatpak/flatpak,handsome-feng/flatpak,GeorgesStavracas/flatpak,handsome-feng/flatpak,matthiasclasen/flatpak,matthiasclasen/flatpak,handsome-feng/flatpak,matthiasclasen/flatpak,matthiasclasen/flatpak,flatpak/flatpak,flatpak/flatpak,handsome-feng/flatpak,handsome-feng/flatpak,GeorgesStavracas/flatpak,matthiasclasen/flatpak,GeorgesStavracas/flatpak