$ git clone -n https://gitee.com/src-opencloudos-rpms/mozjs102.git /var/lib/mock/dist-oc9-build-60507-16463/root/chroot_tmpdir/scmroot/mozjs102
Cloning into '/var/lib/mock/dist-oc9-build-60507-16463/root/chroot_tmpdir/scmroot/mozjs102'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/mozjs102
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 93c8d58 import mozjs102-102.13.0-2.tl4