$ git clone -n https://src.fedoraproject.org/rpms/esh.git /var/lib/mock/f45-build-8502-390/root/chroot_tmpdir/scmroot/esh
Cloning into '/var/lib/mock/f45-build-8502-390/root/chroot_tmpdir/scmroot/esh'...
$ git fetch origin 0573cbaef8261d7aa9f8d0cd9b622908930637d5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/esh
 * [new ref]         0573cbaef8261d7aa9f8d0cd9b622908930637d5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0573cba Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild