Possibly related to the ongoing GitHub service disruption [1], the suggestions displayed when typing an issue/pull request number are from unknown repositories, not just the repository in which I'm creating the pull request [2]. In this case I was expecting exactly one suggestion and got back 1000 [3]. Is anyone else experiencing this?
[1] https://www.githubstatus.com/incidents/r6fc6tyzr430
[2] https://i.imgur.com/K0YLCwo.png
[3] https://i.imgur.com/RTkJrQU.png