$ git clone -n https://gitee.com/opencloudos-stream/gcr3.git /var/lib/mock/dist-ocs23-base-build-251555-24615/root/chroot_tmpdir/scmroot/gcr3
Cloning into '/var/lib/mock/dist-ocs23-base-build-251555-24615/root/chroot_tmpdir/scmroot/gcr3'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/gcr3
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3d698d7 Rebuilt for loongarch release