-- The edited version belongs to the photo whose edits produced it. Copies made
-- before the fix still carried the edit bindings, so a photo without edit
-- parameters showed the edited picture. Drop those bindings: the objects
-- become collectable garbage and the copies show the original picture again.

DELETE FROM photo_objects
WHERE role IN ('edit', 'edit_thumb', 'edit_medium', 'edit_preview')
  AND photo_id IN (
    SELECT id FROM photos WHERE edit_params IS NULL OR edit_params = '{}'::jsonb
  );