$ git clone -n https://gitee.com/opencloudos-stream/imath.git /home/lib/mock/dist-ocs23-build-238224-21246/root/chroot_tmpdir/scmroot/imath
Cloning into '/home/lib/mock/dist-ocs23-build-238224-21246/root/chroot_tmpdir/scmroot/imath'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/imath
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 40a5fe1 Rebuilt for loongarch release