The check for multiple formatters using stdout is disabled when using profiles #826
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Somehow the check for multiple formatters using stdout is disabled when using profiles (even when the profile does not define any formatter). See failing scenario.
The root cause of this behaviour is the logic for replacing the stdout formatter form the profile with the stdout formatter from the command line options. Since the code remove all but the first stdout formatters, you can define several stdout formatters on the command line without getting an error when using profiles, but only the first one will actually be used. This behaviour cased some confusion in this mailing list thread.
To cover all cases, the check for multiple formatters needs to be performed multiple times: