$ git clone -n https://gitee.com/opencloudos-stream/byaccj.git /var/lib/mock/dist-ocs23-base-build-250758-24615/root/chroot_tmpdir/scmroot/byaccj
Cloning into '/var/lib/mock/dist-ocs23-base-build-250758-24615/root/chroot_tmpdir/scmroot/byaccj'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/byaccj
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 32c90f1 Rebuilt for loongarch release