$ git clone -n https://src.fedoraproject.org/rpms/rubygem-msgpack.git /var/lib/mock/f41-build-1714250-24614/root/chroot_tmpdir/scmroot/rubygem-msgpack
Cloning into '/var/lib/mock/f41-build-1714250-24614/root/chroot_tmpdir/scmroot/rubygem-msgpack'...
$ git fetch origin 199cdbd1d412e03fc3f37f164f386750bd167314:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-msgpack
 * [new ref]         199cdbd1d412e03fc3f37f164f386750bd167314 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 199cdbd convert ASL 2.0 license to SPDX