$ git clone -n https://gitee.com/src-anolis-os/libnbd.git /var/lib/mock/dist-an23.3-build-421185-72884/root/chroot_tmpdir/scmroot/libnbd
Cloning into '/var/lib/mock/dist-an23.3-build-421185-72884/root/chroot_tmpdir/scmroot/libnbd'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/libnbd
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 34e67dc Update to 1.20.3 from 1.18.5