++ for your solution, bobf,
but an offset for your assertion that "ForceArray won't do it" because olus' solution (below) using FA *ALSO* does what the OP asked (for the data given).
Update: Careless monk has no excuse for the stricken section; replace with "olus' note -- also re 'KeyAttr' is also valuable." Duh! on me and thanks to both bobf and olus for catching this before it sat there any longer.
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