$ git clone -n https://gitee.com/src-opencloudos-rpms/gsl.git /var/lib/mock/dist-oc9-build-127496-76795/root/chroot_tmpdir/scmroot/gsl
Cloning into '/var/lib/mock/dist-oc9-build-127496-76795/root/chroot_tmpdir/scmroot/gsl'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/gsl
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1779863 import gsl-2.7.1-7.tl4