[Hackage] #900: [regression] cabal configure fails with failed assertion (was: Regression in latest Cabal-1.13.3 snapshot)

[Hackage]

#900: [regression] cabal configure fails with failed assertion
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  Reporter:  guest          |        Owner:         
      Type:  defect         |       Status:  new    
  Priority:  normal         |    Milestone:         
 Component:  Cabal library  |      Version:  1.8.0.6
  Severity:  major          |     Keywords:         
Difficulty:  unknown        |   Ghcversion:         
  Platform:                 |  
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Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/900#comment:1>
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