Object array fields missing from field chooser

[vichargrave]

I'm ingesting fields from tweets into Elasticsearch 1.4.4. I'm dynamically mapping the entities.urls.expanded_url field - see https://dev.twitter.com/overview/api/entities#obj-url. Here is that the field looks like in Sense:

I can see the entities.urls field in the list of fields to select in the table view of KIbana 3 as you can see here:

I cannot see the same field in the list of selectable fields in the Discover view of Kibana 4 - note the "entitied.urls" field should show up between the "created_at" and "favorite_count" fields:

However I can see the field and its contents in the table part of the Discover view that shows the contents of the _source field:

Will this be fixed in a future revision of Kibana 4?