$ git clone -n https://gitee.com/src-opencloudos-rpms/jaxb-api.git /var/lib/mock/dist-oc9-build-41782-14591/root/chroot_tmpdir/scmroot/jaxb-api
Cloning into '/var/lib/mock/dist-oc9-build-41782-14591/root/chroot_tmpdir/scmroot/jaxb-api'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/jaxb-api
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3b61478 import jaxb-api-4.0.0-2.tl4