$ git clone -n https://src.fedoraproject.org/rpms/golang-github-sacloud-packages.git /var/lib/mock/f38-build-side-42-init-devel-1082504-29833/root/chroot_tmpdir/scmroot/golang-github-sacloud-packages
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1082504-29833/root/chroot_tmpdir/scmroot/golang-github-sacloud-packages'...
$ git fetch origin 1f0115525ac058e1bc0ce33755d9ac539e5c264f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-sacloud-packages
 * [new ref]         1f0115525ac058e1bc0ce33755d9ac539e5c264f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1f01155 Added the README