Correct Zdenek. There is no solution if you want to delete the entire submission when it is a combination of online text and files. That appears to be confirmed. We will need to comment on the tracker issues if we want to see a solution.
Thank you for the explanation Mary. It was very helpful. I just read your latest comment in MDL-59577. I also see that it is a closed issue and not assigned to anyone. I don't see any linked issues and no reference to any other open issues. Do the developers read these issues once they are closed? Is there another issue related to this that we can comment on or vote for the fix or new feature?