Stephen Shkardoon 8d4b24b68d FIX Don't show the upload field when inappropriate
This fix is quite ugly, but in theory, it's fine. By ugly,
  I mean the interface is kind of weird without it.
Because 3.1 allows uploading when a DataObject doesn't exist,
  we need to override the new defaults to not allow such if
  the DO isn't saved yet.
2013-09-10 21:03:42 +12:00
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