$ git clone -n https://gitee.com/src-anolis-os/rust.git /var/lib/mock/dist-an23-loongarch-build-317987-67753/root/chroot_tmpdir/scmroot/rust
Cloning into '/var/lib/mock/dist-an23-loongarch-build-317987-67753/root/chroot_tmpdir/scmroot/rust'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/rust
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f8f59f9 Add support for loongarch64