$ git clone -n https://src.fedoraproject.org/rpms/mqttcli.git /var/lib/mock/f45-build-19223-543/root/chroot_tmpdir/scmroot/mqttcli
Cloning into '/var/lib/mock/f45-build-19223-543/root/chroot_tmpdir/scmroot/mqttcli'...
$ git fetch origin 006fe0e073aaa950f01abbb218917a5e8b1a80f9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mqttcli
 * [new ref]         006fe0e073aaa950f01abbb218917a5e8b1a80f9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 006fe0e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild