$ git clone -n https://src.fedoraproject.org/rpms/coolreader.git /var/lib/mock/f45-build-4983-336/root/chroot_tmpdir/scmroot/coolreader
Cloning into '/var/lib/mock/f45-build-4983-336/root/chroot_tmpdir/scmroot/coolreader'...
$ git fetch origin a00440db4596ea848ac3251b4efae0e113db833d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/coolreader
 * [new ref]         a00440db4596ea848ac3251b4efae0e113db833d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a00440d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild