$ git clone -n https://gitee.com/opencloudos-stream/guile22.git /var/lib/mock/dist-oc9-epol-build-92217-59295/root/chroot_tmpdir/scmroot/guile22
Cloning into '/var/lib/mock/dist-oc9-epol-build-92217-59295/root/chroot_tmpdir/scmroot/guile22'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/guile22
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d7047a1 package init