$ git clone -n https://src.fedoraproject.org/rpms/logjam.git /var/lib/mock/f45-build-17569-501/root/chroot_tmpdir/scmroot/logjam
Cloning into '/var/lib/mock/f45-build-17569-501/root/chroot_tmpdir/scmroot/logjam'...
$ git fetch origin de258803142488a52346977807dd736ac29a5ed7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/logjam
 * [new ref]         de258803142488a52346977807dd736ac29a5ed7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at de25880 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild