Submissions

FWIW, the non-submissions version loses submissions from previous work as well.  This version doesn't so much lose previous submissions as just ignores them, as it's a mostly user invisible refactor.  So it's actually a step toward a multi-submission universe, rather than a step away, if that's a direction you'd like to head in the future.  Unless I'm misremembering.  I'm not sure what we would gain by falling back on the old method.