$ git clone -n https://src.fedoraproject.org/rpms/libaec.git /var/lib/mock/f41-build-856045-167435/root/chroot_tmpdir/scmroot/libaec
Cloning into '/var/lib/mock/f41-build-856045-167435/root/chroot_tmpdir/scmroot/libaec'...
$ git fetch origin a2f38c61ce190ea3cda22eb260e545cd3bc0847c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libaec
 * [new ref]         a2f38c61ce190ea3cda22eb260e545cd3bc0847c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a2f38c6 Version bump to v1.1.3 (bug #2270651)