$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-Test-FailWarnings.git /var/lib/mock/dist-oc9-build-43886-14591/root/chroot_tmpdir/scmroot/perl-Test-FailWarnings
Cloning into '/var/lib/mock/dist-oc9-build-43886-14591/root/chroot_tmpdir/scmroot/perl-Test-FailWarnings'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-Test-FailWarnings
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e74187a import perl-Test-FailWarnings-0.008-3.tl4