[GHC] #14676: GHCI doesn't recover from bad :add

[GHC]

#14676: GHCI doesn't recover from bad :add
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        Reporter:  Juzley            |                Owner:  Juzley
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:  8.6.1
       Component:  GHCi              |              Version:  8.2.2
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Other             |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by bgamari):

 * status:  new => closed
 * resolution:   => fixed
 * milestone:   => 8.6.1


Comment:

 Going to merge to `ghc-8.4` as this is a rather annoying usability issue.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14676#comment:4>
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