$ git clone -n https://src.fedoraproject.org/rpms/uhttpmock.git /var/lib/mock/f39-build-1531730-36215/root/chroot_tmpdir/scmroot/uhttpmock
Cloning into '/var/lib/mock/f39-build-1531730-36215/root/chroot_tmpdir/scmroot/uhttpmock'...
$ git fetch origin b93ccd1829803fdb597ad58cce429ba040ab63f4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/uhttpmock
 * [new ref]         b93ccd1829803fdb597ad58cce429ba040ab63f4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b93ccd1 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild