Kibana filter predicting list overlapping results

[troplolBE]

Kibana version:
Kibana 7.6.2
Elasticsearch version:
Elastic 7.6.2
Server OS version:
CentOS 7
Browser version:
Chrome Version 80.0.3987.163
Browser OS version:
Windows 10 Enterprise 1709
Original install method (e.g. download page, yum, from source, etc.):
Docker image with a custom install. (HELK)
Describe the bug:
The bug occurs when creating/editing a visualization and I try to add a filter by using the Add filter button. When typing something and then removing some parts of it the list gets dubbled. The list gets 2 results overlapping each other per line. (see screen)
Steps to reproduce:

1. Create Visualization (Table is easier)
2. Click on + Add filter
3. For the field, start writing a field that exists and then remove last letters (not completely !!!)

Expected behavior:
Predictions of the field should not overlap in the descending menu.
Screenshots (if relevant):

Errors in browser console (if relevant):
No errors in console
Provide logs and/or server output (if relevant):
Not relevant
Any additional context:

[nreese]

The overlapping text is of duplicated field names and EUI combo box does not allow duplicate labels. https://elastic.github.io/eui/#/forms/combo-box

There is a similar bug for the value selection #49450

[troplolBE]

Hi @nreese

Thanks for your answer but I don't completely get it. Does it mean that I made a mistake when setting up the different fields ? Or is this a real problem with the kibana UI ?

I don't have 2 times the same field name in my field names. (at least not that I know)

[nreese]

What does the mapping look like for each Elasticsearch index for the Kibana index pattern used by the visualization?

[elasticmachine]

Pinging @elastic/kibana-app-arch (Team:AppArch)

[lukasolson]

@troplolBE Could you provide your mapping as @nreese suggested? I'm unable to reproduce this locally. Is it possible it has since been fixed?

[Dosant]

Closing due to no activity and as there is a downstream eui bug that most likely will fix this elastic/eui#1997