[GHC] #11695: On GHCi prompt the arrow (movement) keys create strange character sequences

[GHC]

#11695: On GHCi prompt the arrow (movement) keys create strange character sequences
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           Reporter:  heisenbug       |             Owner:
               Type:  bug             |            Status:  new
           Priority:  normal          |         Milestone:
          Component:  GHCi            |           Version:  8.1
           Keywords:                  |  Operating System:  Linux
       Architecture:  x86_64 (amd64)  |   Type of failure:  None/Unknown
          Test Case:                  |        Blocked By:
           Blocking:                  |   Related Tickets:
Differential Rev(s):                  |         Wiki Page:
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 Fire up `GHCi` and sit on the arrow down (or left) keys. This is what I
 get after constantly pressing for some time:
 {{{
 $ ghci
 GHCi, version 8.1.20160202: http://www.haskell.org/ghc/  :? for help
 Loaded GHCi configuration from /home/ggreif/.ghci
 Prelude> OBOBOBBOBOBOBOBOBOBOBCOCCOCOCCOCCOC

 <interactive>:1:1: error:
     Data constructor not in scope: OBOBOBBOBOBOBOBOBOBOBCOCCOCOCCOCCOC
 }}}

 When such a strange letter appears, there is also a blinking of the
 terminal.

 It is not happening on Windows. I have seen it on RHEL5 and RHEL6.

 Pretty annoying, especially when you want to quickly navigate in the repl.

 This is probably a `haskeline` bug, but I am coming here to see whether
 others suffer from it too, i.e. is it reproducible for elseone?

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11695>
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