$ git clone -n https://src.fedoraproject.org/rpms/golang-github-nats-io-jwt-2.git /var/lib/mock/f40-build-781590-131738/root/chroot_tmpdir/scmroot/golang-github-nats-io-jwt-2
Cloning into '/var/lib/mock/f40-build-781590-131738/root/chroot_tmpdir/scmroot/golang-github-nats-io-jwt-2'...
$ git fetch origin d00963ff12d181e801aeeb6a71c02d44be410b18:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-nats-io-jwt-2
 * [new ref]         d00963ff12d181e801aeeb6a71c02d44be410b18 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d00963f update to v2.5.5, close rhbz#2265641