`git push` is stalled on fedora 39 when 'Syncing encrypted data to Keybase' caused by corrupted files in `~/.local/share/keybase/`

I encounter the following on fedora 39:

```bash
$ git push
Initializing Keybase... done.
Syncing with Keybase... done.
Preparing and encrypting: (0.00%) 0/9 objects... done.
Syncing encrypted data to Keybase: (0.00%) 0.00/171.86 KB...
# stalled forever
```

on

```bash
$ keybase --version
keybase version 6.2.3-20231016183016+06cb935ee3
$ git-remote-keybase --version
6.2.3-20231016183016+06cb935ee3
$ git --version
git version 2.42.0
```

Is there a way to provide more information?

Kind regards,

aanno

Begin with the Fedora 39 reproduction using `git push` and the listed Keybase, git-remote-keybase, and Git versions. Inspect the git-remote-keybase sync path and the `~/.local/share/keybase/` state; done means identifying a reproducible cause for the stall and documenting a validated fix or the diagnostic information maintainers need.

Written by the indexing model from the issue text.