$ git clone -n https://src.fedoraproject.org/rpms/grilo-plugins.git /var/lib/mock/f41-build-side-1-2641429-26706/root/chroot_tmpdir/scmroot/grilo-plugins
Cloning into '/var/lib/mock/f41-build-side-1-2641429-26706/root/chroot_tmpdir/scmroot/grilo-plugins'...
$ git fetch origin e32c168f5319b70515c937087f1b66a19add6753:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/grilo-plugins
 * [new ref]         e32c168f5319b70515c937087f1b66a19add6753 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e32c168 convert license to SPDX