Comment 19 for bug 2065482

unfortunately without additional info we can't really reproduce this. The workaround for you (take a snapshot of the DB anyways, just in case) is to reset the linked numa node to NULL with

```
update maasserver_interface set numa_node_id=null where id = 272;
```

and ideally inspect a bit if that numa node is linked also somewhere else and then remove it. I'm keeping this bug as incomplete, but if you experience this again feel free to re-open and provide all the regiond logs