$ git clone -n https://gitee.com/src-anolis-sig/polardb.git /var/lib/mock/dist-an23-loongarch-build-320374-67906/root/chroot_tmpdir/scmroot/polardb
Cloning into '/var/lib/mock/dist-an23-loongarch-build-320374-67906/root/chroot_tmpdir/scmroot/polardb'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-sig/polardb
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4461d00 disable spinlocks for loongarch64