[GHC] #4057: Modifying TVar after calling always causes freeze/spin in GHCi

[GHC]

#4057: Modifying TVar after calling always causes freeze/spin in GHCi
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    Reporter:  Baughn            |        Owner:  simonmar                   
        Type:  bug               |       Status:  new                        
    Priority:  high              |    Milestone:  6.14.1                     
   Component:  GHCi              |      Version:  6.12.1                     
    Keywords:                    |   Difficulty:                             
          Os:  Unknown/Multiple  |     Testcase:                             
Architecture:  Unknown/Multiple  |      Failure:  Incorrect result at runtime
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Changes (by simonmar):

  * owner:  => simonmar


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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4057#comment:2>
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