$ git clone -n https://src.fedoraproject.org/rpms/persepolis.git /var/lib/mock/f45-build-27852-626/root/chroot_tmpdir/scmroot/persepolis
Cloning into '/var/lib/mock/f45-build-27852-626/root/chroot_tmpdir/scmroot/persepolis'...
$ git fetch origin f0c4964f1835e2a40ebd601faca51a73c623505d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/persepolis
 * [new ref]         f0c4964f1835e2a40ebd601faca51a73c623505d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f0c4964 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild