bug#53594: no matching pattern #<package polkit..

[Guu, Jin-Cheng]

Hello Guix,

I obtained a latest dev ISO for guix system and tried installing it
just now. With the graphical installer, I received the error below for
two times. Perhaps it's a bug?

    In ice-9/boot-9.scm:
      1685:16  1 (raise-exception _ #:continuable? _)
      1685:16  0 (raise-exception _#:continuable? _)

    ice-9/boot-9.scm:1685:16: In procedure raise-exception:
    Throw to key `match-error' with args `("match" "no matching
pattern" #<package polkit@0.120 gnu/packages/polkit.scm: 54
7f6e64aa7b00>)'.

    Command failed with exit code 1.
    Press Enter to continue.

Thank you for all your work!

Best Regards,
Jin