$ git clone -n https://src.fedoraproject.org/rpms/libaec.git /var/lib/mock/f45-build-15815-479/root/chroot_tmpdir/scmroot/libaec
Cloning into '/var/lib/mock/f45-build-15815-479/root/chroot_tmpdir/scmroot/libaec'...
$ git fetch origin 608d4f31465aec197826e632350f4de6d47394b3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libaec
 * [new ref]         608d4f31465aec197826e632350f4de6d47394b3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 608d4f3 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild