title: How can I retroactively create a link from a Jira issue to a Github pull request?
body: <p>My organisation's Jira has been setup to integrate with Github Enterprise. I know that I can establish a link to a Github PR that appears in the <a href="https://support.atlassian.com/jira-software-cloud/docs/view-development-information-for-an-issue/" rel="nofollow noreferrer">&quot;Development&quot; panel of the Jira issue view</a> by including the Jira issue key in the PR title like so: <code>fix(BUG-123): ...</code> (as described <a href="https://support.atlassian.com/jira-software-cloud/docs/reference-issues-in-your-development-work/" rel="nofollow noreferrer">here</a>).</p>
  <p>However, if the PR title originally does not include the issue key and I add it by editing the PR title in order to establish the link retroactively it does not seem to get picked up by Jira. Am I missing something, is there some other way to establish the link explicitly, or is this just a bug?</p>