$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-Archive-Tar.git /var/lib/mock/dist-oc9-build-43404-14591/root/chroot_tmpdir/scmroot/perl-Archive-Tar
Cloning into '/var/lib/mock/dist-oc9-build-43404-14591/root/chroot_tmpdir/scmroot/perl-Archive-Tar'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-Archive-Tar
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eeb2e91 import perl-Archive-Tar-2.40-3.tl4