bug#57307: guix system reports an error when uuid is used in menu-entry

[tiantian]

I want to add an menu-entry in bootloader-configuration. I use uuid to specify the partition in device field of menu-entry , because my partition has no label. But when I use 'guix system reconfigure', guix system reports an error: "guix system: error: #<<uuid> type: dce bv: #vu8(109 91 19 212 96 146 70 208 139 228 7 61 192 116 19 204)>: invalid G-_expression_ input"

After asking friends in #guixcn, I still can't get more error messages. It's the only error message. I can't find its reason.

To find the problem, I also simplified my configuration file and tried to use ‘git bisect’ to find it, but I failed. I couldn't find a good commit. I rolled back to c1719a0 commit in git repository, but I still got the error message after building and using './pre-inst-env  guix system build ./config-test.scm'. I had to give up solving it and just send an email to report the bug.

    My English is poor. I use translation software. If
      the grammar is wrong, please forgive me.

config-test.scm
Description: Text Data

OpenPGP_0x47280B4EFC5FC701.asc
Description: OpenPGP public key

OpenPGP_signature
Description: OpenPGP digital signature