$ git clone -n https://gitee.com/src-opencloudos-rpms/shim.git /var/lib/mock/dist-oc9-la64-build-136748-79246/root/chroot_tmpdir/scmroot/shim
Cloning into '/var/lib/mock/dist-oc9-la64-build-136748-79246/root/chroot_tmpdir/scmroot/shim'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/shim
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 102bff0 import shim-15.7-9.tl4.ap.1