ghci changing 'm' to 'g'

[Yitzchak Gale]

Quoth InteractiveUI.runGHCi:

  case maybe_expr of
        Nothing ->
          do
#if defined(mingw32_HOST_OS)
            -- The win32 Console API mutates the first character of
            -- type-ahead when reading from it in a non-buffered manner. Work
            -- around this by flushing the input buffer of type-ahead
characters,
            -- but only if stdin is available.
            flushed <- io (IO.try (GHC.ConsoleHandler.flushConsole stdin))
            case flushed of
             Left err | isDoesNotExistError err -> return ()
                      | otherwise -> io (ioError err)
             Right () -> return ()
#endif
            -- enter the interactive loop
            interactiveLoop is_tty show_prompt

Could this be related somehow?

-Yitz