$ git clone -n https://src.fedoraproject.org/forks/packit/rpms/golang-uber-mock.git /var/lib/mock/f43-build-59173441-6571496/root/chroot_tmpdir/scmroot/golang-uber-mock
Cloning into '/var/lib/mock/f43-build-59173441-6571496/root/chroot_tmpdir/scmroot/golang-uber-mock'...
$ git fetch origin d65dd707f6cf0b5397d646305fbcbd572c081328:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/forks/packit/rpms/golang-uber-mock
 * [new ref]         d65dd707f6cf0b5397d646305fbcbd572c081328 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d65dd70 Update to 0.5.2 upstream release