$ git clone -n https://src.fedoraproject.org/rpms/nkf.git /var/lib/mock/f39-build-1458913-33094/root/chroot_tmpdir/scmroot/nkf
Cloning into '/var/lib/mock/f39-build-1458913-33094/root/chroot_tmpdir/scmroot/nkf'...
$ git fetch origin 58bf38dd626bc8bc1850a30859a46b3dd1f42557:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nkf
 * [new ref]         58bf38dd626bc8bc1850a30859a46b3dd1f42557 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 58bf38d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild