PD Ghetto Patch.py

models.py

  if field.primary_key or field.unique:
      # You're not as special anymore but we still love you.
      # Plop an index on it so it's fast.
      field.primary_key = False
      field._unique = False
      field.db_index = True
  
+ # Bugfix: If there's a related_name, it needs to be unique-ish.
+ if hasattr(field, 'rel') and field.rel:
+     new_rel = copy.copy(field.rel)
+     new_rel.related_name = '%s_versioned' % field.rel.related_name
+     field.rel = new_rel
+ 
  fields[field.name] = field