Author for git events is not set correctly in Jira Dev Panel with DVCS Gitlab integration.

Issue Summary

• If there are user in gitlab which have an ambiguous name like following then which ever user is first in alphabetical order is reported as Author.

xyz
zxyz
mxyz
axyz

• It seems that following gitlab API is being used to fetch these users in Jira. This fetch all users matching expression "xyz"

<gitlab-url>/api/v4/users?search=<emailorusername> 

• Instead following api should be used to get specific user information.

  <gitlab-url>/api/v4/users?username=xyz

This is reproducible on Data Center: no

Steps to Reproduce

NA

Expected Results

Dev tool sidebar is showing the wrong user for actions taken in GitLab. Instead of showing actions done by user "xyz", the DVCS-Connector seems to show the first in alphabetical order containing that username, hence showing "axyz" as "actor". 

Following API should be used instead to get correct user information.

<gitlab-url>/api/v4/users?username=xyz 

Actual Results

The below exception is thrown in the xxxxxxx.log file:

 2024-02-16 16:35:04,746+0100 DVCSConnector.EventService:thread-1 WARN [c.a.j.p.d.spi.gitlab.GitLabCommunicator] Provided user identifier 'xyz' is ambiguous. Found [9] corresponding users: [[GitLabUser{avatarUrl='<someurl>/avatar.png', createdAt='null', email='null', id=3361476, name='Some1 xyz', state='active', username='xyz', webUrl='https://gitlab.com/xyz'}
, GitLabUser{avatarUrl='<someurl>/avatar.png', createdAt='null', email='null', id=13688770, name='Some2 xyz', state='active', username='zxyz', webUrl='https://gitlab.com/zxyz'}
, GitLabUser{avatarUrl='<someurl>/avatar.png', createdAt='null', email='null', id=2756994, name='Some3 xyz', state='active', username='mxyz', webUrl='https://gitlab.com/mxyz'}
, GitLabUser{avatarUrl='<someurl>/avatar.png', createdAt='null', email='null', id=8255511, name='Some4 xyz', state='active', username='axyz', webUrl='https://gitlab.com/axyz'}
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Workaround

Currently there is no known workaround for this behavior.