title: Strange Assignee names coming from Assignee column in jiraissue table
body: <p>I am using Jira backend database to pull some columns for reporting. <code>Assignee</code> column in <code>jiraissue</code> table stores the Webkey ID/usernames of all the employees. I join this with <code>cwd_user</code> to get the full name of the assignee. But I also see some weird values like the ones below. I don't have a clue about how to get the display names of these users. They are not Webkey ID/usernames.</p>
  <p><a href="https://i.stack.imgur.com/iJXSZ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/iJXSZ.png" alt="enter image description here" /></a></p>
  <p>Any thoughts on what I might be missing?</p>