$ git clone -n https://src.fedoraproject.org/rpms/freeipa-fas.git /var/lib/mock/f45-build-9243-400/root/chroot_tmpdir/scmroot/freeipa-fas
Cloning into '/var/lib/mock/f45-build-9243-400/root/chroot_tmpdir/scmroot/freeipa-fas'...
$ git fetch origin aff7a6ff2ae83f23145ca6093b64c1d3cdfa7748:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/freeipa-fas
 * [new ref]         aff7a6ff2ae83f23145ca6093b64c1d3cdfa7748 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aff7a6f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild