$ git clone -n https://gitee.com/opencloudos-stream/epol-release.git /var/lib/mock/dist-ocs23-base-build-374608-47305/root/chroot_tmpdir/scmroot/epol-release
Cloning into '/var/lib/mock/dist-ocs23-base-build-374608-47305/root/chroot_tmpdir/scmroot/epol-release'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/epol-release
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf4a0e2 !2 Hardcode repo version 9 in repo name (releasever expands to 4 on TencentOS Server 4)