Continuation and requestCharge missing with options.setEnableCrossPartitionQuery(true);

I'm trying to use continuations against a partitioned cosomosdb.

I've noticed that queries that hit multiple partitions will fail with
> Cross partition query is required but disabled

In these cases its possible to use options.setEnableCrossPartitionQuery(true) and the query returns.

However for cross partition queries I see that feedResponse.getResponseContinuation() returns null and feedResponse.getRequestCharge() is 0.0.

It's then not possible to page to as there is no continuation token. Also I'd expect the requestCharge to be the sum of all the paritition charges.

Is this a bug or a limitation?