$ git clone -n https://src.fedoraproject.org/rpms/wavbreaker.git /var/lib/mock/f39-build-2041006-48346/root/chroot_tmpdir/scmroot/wavbreaker
Cloning into '/var/lib/mock/f39-build-2041006-48346/root/chroot_tmpdir/scmroot/wavbreaker'...
$ git fetch origin 96af4ee0f34366cae9e5c70769c7487352b2a83f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wavbreaker
 * [new ref]         96af4ee0f34366cae9e5c70769c7487352b2a83f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 96af4ee Update to 0.11