$ git clone -n https://src.fedoraproject.org/rpms/golang-github-apache-openwhisk-client.git /var/lib/mock/f38-build-side-42-init-devel-603189-26218/root/chroot_tmpdir/scmroot/golang-github-apache-openwhisk-client
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-603189-26218/root/chroot_tmpdir/scmroot/golang-github-apache-openwhisk-client'...
$ git fetch origin be6968164e2773aeeab0a4e1e8ad6afc2086e255:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-apache-openwhisk-client
 * [new ref]         be6968164e2773aeeab0a4e1e8ad6afc2086e255 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at be69681 Initial package - Closes rhbz#2128639