$ git clone -n https://gitee.com/opencloudos-stream/chan.git /var/lib/mock/dist-ocs23-base-build-294009-28490/root/chroot_tmpdir/scmroot/chan
Cloning into '/var/lib/mock/dist-ocs23-base-build-294009-28490/root/chroot_tmpdir/scmroot/chan'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/chan
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c6be87d Rebuilt for clarifying the packages requirement in BaseOS and AppStream