$ git clone -n https://gitee.com/src-opencloudos-rpms/rt-tests.git /var/lib/mock/dist-oc8-build-74663-50983/root/chroot_tmpdir/scmroot/rt-tests
Cloning into '/var/lib/mock/dist-oc8-build-74663-50983/root/chroot_tmpdir/scmroot/rt-tests'...
$ git fetch origin 9a884f1493a7e0b4b4ba667061237dcced78491c:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/rt-tests
 * [new ref]         9a884f1493a7e0b4b4ba667061237dcced78491c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9a884f1 import rt-tests-2.6-3.tl3