Kibana: Incorrect predictions for aggregations in Dev Tools app

[darshanparab]

Kibana version: 7.2.0

Elasticsearch version: 7.2.0

Server OS version: Ubuntu 16.04

Browser version: Firefox 68.0.2

Browser OS version: Archlinux 4.19.67-1-lts x86_64 GNU/Linux

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

Describe the bug:
Aggregations query gives possible aggregation suggestions for NAME field instead of AGG_TYPE field

Steps to reproduce:

1. Start entering aggregations query in Dev Tools app. This will automatically populate template as below
   
   "aggs": { "NAME": { "AGG_TYPE": {} }
2. While replacing NAME with desired string, Kibana starts suggesting available aggregations.
3. No suggestions / template population happens while replacing AGG_TYPE

Expected behavior:

1. Suggestions and template population should happen while modifying AGG_TYPE and not NAME

Screenshots (if relevant):
Predictions while modifying NAME

No predictions while modifying AGG_TYPE

Errors in browser console (if relevant):

Provide logs and/or server output (if relevant):

Any additional context:

[elasticmachine]

Pinging @elastic/es-ui

[cjcenizal]

Thanks for reporting this @darshanparab! We've fixed this in 7.3.0 via https://github.com/elastic/kibana/pull/40816.

[darshanparab]

@cjcenizal @mikecote thanks a lot for your support :)