$ git clone -n https://src.fedoraproject.org/rpms/golang-github-sacloud-iaas-api.git /var/lib/mock/f38-build-side-42-init-devel-1082502-29833/root/chroot_tmpdir/scmroot/golang-github-sacloud-iaas-api
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1082502-29833/root/chroot_tmpdir/scmroot/golang-github-sacloud-iaas-api'...
$ git fetch origin 060c59484c7c60c15e0d36e52836505ddfc1e70d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-sacloud-iaas-api
 * [new ref]         060c59484c7c60c15e0d36e52836505ddfc1e70d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 060c594 Added the README