$ git clone -n https://src.fedoraproject.org/rpms/golang-gopkg-playground-validator-10.git /var/lib/mock/f38-build-side-42-init-devel-1283622-30672/root/chroot_tmpdir/scmroot/golang-gopkg-playground-validator-10
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1283622-30672/root/chroot_tmpdir/scmroot/golang-gopkg-playground-validator-10'...
$ git fetch origin f78d91db74329512346670329b33d1a80035be29:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-gopkg-playground-validator-10
 * [new ref]         f78d91db74329512346670329b33d1a80035be29 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f78d91d Added the README