$ git clone -n https://src.fedoraproject.org/rpms/libcdio.git /var/lib/mock/f45-build-15928-480/root/chroot_tmpdir/scmroot/libcdio
Cloning into '/var/lib/mock/f45-build-15928-480/root/chroot_tmpdir/scmroot/libcdio'...
$ git fetch origin 99b86a77555a8067c813a3a028c18e6ac4f68eec:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libcdio
 * [new ref]         99b86a77555a8067c813a3a028c18e6ac4f68eec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 99b86a7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild