$ git clone -n https://gitee.com/src-opencloudos-rpms/jakarta-activation.git /var/lib/mock/dist-oc9-build-41751-14591/root/chroot_tmpdir/scmroot/jakarta-activation
Cloning into '/var/lib/mock/dist-oc9-build-41751-14591/root/chroot_tmpdir/scmroot/jakarta-activation'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/jakarta-activation
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0d1544f import jakarta-activation-2.1.1-2.tl4