bug#55367: Acknowledgement (guix refresh fails. struct-vtable: Wrong type argument in position 1 (expecting struct))

[Rostislav Svoboda]

And also I just noticed, for firefox the indicated version numbers are
the same. I.e. from 100.0 to 100.0
```
nongnu/packages/mozilla.scm:94:13: firefox would be upgraded from
100.0 to 100.0.
```