$ git clone -n https://gitee.com/opencloudos-stream/isomd5sum.git /var/lib/mock/dist-ocs23-base-build-252245-24615/root/chroot_tmpdir/scmroot/isomd5sum
Cloning into '/var/lib/mock/dist-ocs23-base-build-252245-24615/root/chroot_tmpdir/scmroot/isomd5sum'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/isomd5sum
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6494373 Rebuilt for loongarch release