I am working on an action that turns Xcode compile warnings and errors into annotations.
This Action works well when I use it in a workflow that is triggered by a push to the main branch. But when it is triggered by a
pull_request the annotations do not show up. The workflow executes, I see the correct annotation in a debug log and the call to add the annotations to the check run is good. No annotations are shown though.
What do I miss here? Are PRs special wrt annotations and/or check runs?