$ git clone -n https://gitee.com/gcdota930915/golang.git /mnt/mock/kojid//dist-an23.5-riscv-build-538903-83932/root/chroot_tmpdir/scmroot/golang
Cloning into '/mnt/mock/kojid//dist-an23.5-riscv-build-538903-83932/root/chroot_tmpdir/scmroot/golang'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/gcdota930915/golang
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at da4d253 Enable riscv64 arch