$ git clone -n https://src.fedoraproject.org/rpms/python-nikola.git /var/lib/mock/f39-build-1756422-41478/root/chroot_tmpdir/scmroot/python-nikola
Cloning into '/var/lib/mock/f39-build-1756422-41478/root/chroot_tmpdir/scmroot/python-nikola'...
$ git fetch origin cff1ace7663abf8d2d58e3614a14730bdd212025:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-nikola
 * [new ref]         cff1ace7663abf8d2d58e3614a14730bdd212025 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cff1ace Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild