bug#59784: [version 1.4.0rc1] Retrying a failed install fails

[pelzflorian (Florian Pelz)]

I aborted graphical system installation (Ctrl-C), retried the
installation and got this:

shepherd: Service guix-daemon has been stopped.
shepherd: Service guix-daemon has been started.
guix system: Fehler: opening file 
`/gnu/store/4z81a7njyvnwa4kn46ad6vhvi0lcnrhh-shadow-4.9.drv': No such file or 
directory
Befehl ("guix" "system" "init" "--fallback" "/mnt/etc/config.scm" "/mnt") hat 
mit Exit-Code 1 geendet
Drücken Sie die Eingabetaste, um fortzufahren.

(It told me to press Enter to continue.)  I did so; retried; but again
it did not really retry the installation, I always get this same error
message.

Sorry in case this is a duplicate bug.

Regards,
Florian