onCheckLog vs onCheckExitCode

Hello Leonardo and Muster users,

I am currently trying to improve some of my templates to make them display errors and warnings in the Chunks detail list in a more useful way.

The specific case I am concerned with is the following one:
– a chunk produces an error or a warning and fails to render, it prints an error message, which is catched by onCheckLog()
– the executable returns an exit code != 0 and therefore returns an MTemplateAPI.MTemplateError, which overwrites the much more meaningful error message from onCheckLog()
– what I see in the Chunks Detail view is “Exit code 1 different from expected 0 value” instead of e.g. “Out of memory error” or “Failed to read pixel date from image file …”

So the question is: Is there a way to check in onCheckExitCode() whether or not an error was already returned in onCheckLog() or onCheckLogLine()?
Of course I don’t want to just disable or skip onCheckExitCode(), because there might be cases where the exit code is the only indication of a failed rendering.

Thanks for any advice!
Regards, claus