Kibana version: 6.3.0
Elasticsearch version: 6.3.0
Server OS version: OSX
Browser version: Chrome
Browser OS version: Latest
Original install method (e.g. download page, yum, from source, etc.): Snapshots

Describe the bug:
In visualize tile maps I am seeing a different request when the spy panel is expanded, I am not sure if this is expected behavior or not

Steps to reproduce:

New visualization
Tile maps, expand spy panel, verify request I see filter aggs when not expanded, but when expanded it is not there.