Pull requests created by app on behalf of user not marked as "With App"

According to the doc, when an issue is created by github app on behalf of user, there will be a "With " annotation.

However, when pull requests are created by a github app, there’s no such mark. Below are an issue and a pull request created by a github app with same user token:

The issue is correctly marked "With ", but the pull request is not. I guess the pull request confuses user a lot without such annotation.