Upstreamed as https://gitlab.com/Bitergia/c/Wikimedia/support/issues/5

This issue blocks allowing us to have reliable newcomer activity results for T163440 / T175854.

Steps:

1. Go to https://wikimedia.biterg.io/app/kibana#/dashboard/Overview
2. In the Search field, replace * by author_name="Base"

Expected outcome:

• The "Top Authors" widget only displays "Base" as a single entry

Actual outcome:

• The "Top Authors" widget displays many entries

Continued steps:

3. In the "Organizations" widget, click "Phacility" to filter the view

Actual outcome:
The "Top Authors" widget displays "Evan Priestley" but looking at https://github.com/Bitergia/mediawiki-identities/commit/48986a7fb95a66b667779356fa3c5e28e509dbb3 (latest DB dump) and searching for "Base", there is only the uuid 0cbcbe048216000dcc5ba9f4144c7696e139a77e which does not include Evan.

Other example:

1. Go to https://wikimedia.biterg.io/app/kibana#/dashboard/Git
2. Set time frame to "Last 6 months"
3. Replace * by author_name="Andre Klapper"
4. In the Authors widget, see "Andre Klapper" and "Daniel Zahn"
5. Filter on "Daniel Zahn"
6. See that "Repositories" shows https://gerrit.wikimedia.org/r/operations/puppet and Date = April 17th 2017
7. Find the corresponding change in https://gerrit.wikimedia.org/r/#/c/348565/ which is unrelated to user "Andre Klapper"