Creating filter from array fields with multiple values creates invalid elasticsearch filter

[bhavyarm]

Kibana version: 7.12.0 BC4

Elasticsearch version: 7.12.0 BC4

Server OS version: darwin_x86_64

Browser version: chrome latest

Browser OS version: OS X

Original install method (e.g. download page, yum, from source, etc.): from staging

Describe the bug: If user creates a filter on maps app using tooltips and if the fields are nested - maps app displays ES error.

Steps to reproduce:

1. Install Kibana ecommerce sample data and go to maps app and create a new map and add ecommerce documents
2. add these fields for tool tips on the documents layer - category, customer_gender, products.category
3. look for these values - Men's Accessories,Men's Clothing on a tool tip and click - Kibana creates a filter
4. The document layer gets disabled and maps display ES error.

Screenshots (if relevant):

[elasticmachine]

Pinging @elastic/kibana-gis (Team:Geo)

[nreese]

I changed the issue name to "Creating filter from array fields with multiple values creates invalid elasticsearch filter"

The issue is not with nested fields but with array fields when there are multiple values. Looking at how Discover handles this value, a match_phrase filter is created foreach value.