$ git clone -n https://src.fedoraproject.org/rpms/libao.git /var/lib/mock/f45-build-15844-480/root/chroot_tmpdir/scmroot/libao
Cloning into '/var/lib/mock/f45-build-15844-480/root/chroot_tmpdir/scmroot/libao'...
$ git fetch origin 12f9e321e5c4e2ee12bf04b85672538e4447b858:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libao
 * [new ref]         12f9e321e5c4e2ee12bf04b85672538e4447b858 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 12f9e32 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild