Search text incorrectly recognized as a number

[nesneros]

Kibana version:
7.9.2

Elasticsearch version:
7.9.2

Server OS version:
Linux

Browser version:
Chrome

Browser OS version:
Linux Ubuntu 20.04

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

Describe the bug:
When searching for '0A0' (zeros not O's) in the search bar Kibana recognizes it as a number, and it doesn't search for the text '0A0'.

Steps to reproduce:

1. Add document with text '0A0'
2. Make full text search with '0A0'

Expected behavior:
To find the document with text '0A0'

Screenshots (if relevant):

Errors in browser console (if relevant):

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

Any additional context:
I had a look in the code where Kibana decides if a search input is a String or number and there is an issue with the reg exp in src/plugins/data/common/es_query/kuery/ast/kuery.peg, line 250.
The pattern is '/^(-?[1-9]+\d*([.]\d+)?)$|^(-?0[.]\d*[1-9]+)$|^0$|^0.0$|^[.]\d{1,}$/', there is a part that is supposed to match only the text '0.0', but it will e.g. also match the text '0A0'. The part of the pattern should have been '0[.]0'.

[elasticmachine]

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

[majagrubic]

I managed to reproduce this on Cloud instance 7.9.0