CircleCI has spontaneously stopped being able to build my repos. I have a main repo, and forked repos in the same organization. The owner of each forked repo has set up CircleCI correctly, so that builds for PRs against the main repo were being run.
Now, PR builds are failing, because CircleCI is trying to use a key that it has not added to the main account:
"Checkout using CircleCI fork PR checkout user key: "
I’ve not changed any config on my end, so seems possible that this is a bug in CircleCI. I’ve tried removing and re-adding the repos in question, no luck.