$ git clone -n https://gitee.com/zhangwenlong01/boost_1.git /var/lib/mock/dist-an23-loongarch-build-332502-69488/root/chroot_tmpdir/scmroot/boost_1
Cloning into '/var/lib/mock/dist-an23-loongarch-build-332502-69488/root/chroot_tmpdir/scmroot/boost_1'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/zhangwenlong01/boost_1
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2252a56 add loongarch64 support for boost 1.81