$ git clone -n https://src.fedoraproject.org/rpms/rubygem-listen.git /var/lib/mock/f38-build-side-42-init-devel-679463-26707/root/chroot_tmpdir/scmroot/rubygem-listen
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-679463-26707/root/chroot_tmpdir/scmroot/rubygem-listen'...
$ git fetch origin 5fc7d426a041f824e8a582702875ea8c07131e51:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-listen
 * [new ref]         5fc7d426a041f824e8a582702875ea8c07131e51 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5fc7d42 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild