$ git clone -n https://src.fedoraproject.org/rpms/logstalgia.git /var/lib/mock/f45-build-17544-501/root/chroot_tmpdir/scmroot/logstalgia
Cloning into '/var/lib/mock/f45-build-17544-501/root/chroot_tmpdir/scmroot/logstalgia'...
$ git fetch origin 98ca101a1896356baaae5b729aa367b3e19cecec:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/logstalgia
 * [new ref]         98ca101a1896356baaae5b729aa367b3e19cecec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 98ca101 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild