$ git clone -n https://src.fedoraproject.org/rpms/libffado.git /var/lib/mock/f40-build-2672197-67483/root/chroot_tmpdir/scmroot/libffado
Cloning into '/var/lib/mock/f40-build-2672197-67483/root/chroot_tmpdir/scmroot/libffado'...
$ git fetch origin ecf0392148c13da95cee5059da91595189707f25:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libffado
 * [new ref]         ecf0392148c13da95cee5059da91595189707f25 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ecf0392 Version 2.4.8