[forge-dev] github pull request to issue linking

Hi, I recall having seen github linking a pull request to the JIRA issue automatically. With my last pull request this was not the case, did I do something wrong? Can you please tell me how that feature worked and why it didnt with my last pull request: https://github.com/forge/core/issues/348? I really would like to see that feature at the company's site too :-) Thanks, Thomas