$ git clone -n https://src.fedoraproject.org/rpms/golang-github-jbenet-goprocess.git /var/lib/mock/f38-build-side-42-init-devel-652597-26511/root/chroot_tmpdir/scmroot/golang-github-jbenet-goprocess
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-652597-26511/root/chroot_tmpdir/scmroot/golang-github-jbenet-goprocess'...
$ git fetch origin ae6d13340a94863bc91fd616138361a7863a9570:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-jbenet-goprocess
 * [new ref]         ae6d13340a94863bc91fd616138361a7863a9570 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ae6d133 Added the README