bug#71951: guix home reconfigure, no such file or directory

[chris]

Today guix home reconfigure is not working on this system. Not sure how to 
troubleshoot or fix the issue.

```bash
guix home reconfigure guix.home.scm 
guix home: error: failed to load 'guix.home.scm': そのようなファイルやディレクトリはありません÷
guix home reconfigure -L /home/bumble/software/guix-home/ guix.home.scm 
guix home: error: failed to load 'guix.home.scm': そのようなファイルやディレクトリはありません
```

I have tried rolling back system and home configurations to previous (known 
working) versions, but home reconfigure never loads guix.home.scm and always 
shows the same "no such file or directory" message.

Yesterday guix home reconfigure was working normally and, when it was used, 
there were many GC object size warnings, however such messages have been a 
common part of the normal guix home reconfigure output for the last 6 to 12 
months and so they are not a new development for me but sharing anyway in case 
they could be related.

Thanks in advance for any help