Correct docs for a Cluster Selector case
I think this part of the documentation has a volatile mistake.
@@ -777,9 +777,8 @@ spec:
### `spec.placement.clusters` is not provided, `spec.placement.clusterSelector` is provided but empty
-In this case, `spec.placement.clusterSelector` will be ignored, since
-`spec.placement.clusters` is provided. This ensures that the results of runtime
-scheduling have priority over manual definition of a cluster selector.
+In this case, `spec.placement.clusters` will be ignored, since only
+`spec.placement.clusterSelector` is provided.
```yaml
spec:
