Submission diff unchanged #3070
Merged
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When submission had no changes the diff is empty and there was no way in the interface to switch to edit files.
Even worse is the case of only added files. There the files are not even available in a previous submission.
If that would be a relevant use case, the interface could be improved somehow to show more information than an edit and download button. But that might mean to merge submission_source and submission_diff.