None of the GITHUB_PR_*_EMAIL parameters is set?

[st-fankl-in]

I got a working job to trigger build by github pull request.
Trigger mode is "hooks with persisted data".
The job is using a Jenkinsfile from SCM.
Setting pending and status on the PR works.

GITHUB_PR_TRIGGER_SENDER_AUTHOR is set to the correct value in every build, but neither of:

• GITHUB_PR_TRIGGER_SENDER_EMAIL
• GITHUB_PR_COMMIT_AUTHOR_EMAIL
• GITHUB_PR_AUTHOR_EMAIL

are set.

I tried:

• creating a PR with 2 different github accounts
• set and unset "keep my email address private" in github
• set the webhook to json and x-form-urlencoded (does this even matter?)

Running out of ideas what could be wrong, where to look.

Versions:
GitHub Integration Plugin 0.3.0
Jenkins 2.293

[Sapr0]

Make sure your GitHub profile has a public email displayed