$ git clone -n https://src.fedoraproject.org/rpms/kf6-kwallet.git /var/lib/mock/f42-build-862184-170674/root/chroot_tmpdir/scmroot/kf6-kwallet
Cloning into '/var/lib/mock/f42-build-862184-170674/root/chroot_tmpdir/scmroot/kf6-kwallet'...
$ git fetch origin 8724321488b6def231b17bf3b9a56d83c54da00a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kwallet
 * [new ref]         8724321488b6def231b17bf3b9a56d83c54da00a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8724321 6.8.0