[GHC] #9643: ghci must be restarted to use break point more than once?

[GHC]

#9643: ghci must be restarted to use break point more than once?
-------------------------------------+-------------------------------------
       Reporter:  dsamperi           |                   Owner:
           Type:  bug                |                  Status:  new
       Priority:  normal             |               Milestone:
      Component:  GHCi               |                 Version:  7.8.3
       Keywords:                     |        Operating System:
   Architecture:  Unknown/Multiple   |  Unknown/Multiple
     Difficulty:  Unknown            |         Type of failure:
     Blocked By:                     |  None/Unknown
Related Tickets:                     |               Test Case:
                                     |                Blocking:
                                     |  Differential Revisions:
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 When I set a break point (in main say) I stop there when I run
 the function, but if I run the function again the break point is
 ignored. Restarting ghci and resetting the break point makes it
 effective again, but this seems strange. Is this a bug or a feature?

 Also, when I run :trace after stopping at a break point, the remainder of
 the function is run, and :back complains that I cannot go backwards
 because I am not at a break point.

 Thanks,
 Dominick

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9643>
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