$ git clone -n https://gitee.com/src-opencloudos-rpms/epol-release.git /var/lib/mock/dist-oc9-build-240243-82672/root/chroot_tmpdir/scmroot/epol-release
Cloning into '/var/lib/mock/dist-oc9-build-240243-82672/root/chroot_tmpdir/scmroot/epol-release'...
$ git fetch origin bc1c34e0eb52f4e1ba84dfb60e311357616aafde:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/epol-release
 * [new ref]         bc1c34e0eb52f4e1ba84dfb60e311357616aafde -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bc1c34e import epol-release-9-9.tl4