$ git clone -n https://gitee.com/src-anolis-sig/sysom.git /var/lib/mock/dist-an23-loongarch-build-328566-69082/root/chroot_tmpdir/scmroot/sysom
Cloning into '/var/lib/mock/dist-an23-loongarch-build-328566-69082/root/chroot_tmpdir/scmroot/sysom'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-sig/sysom
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dd6a3ec update to 2.2