Re-exported module documentation appears twice if imported qualified as well as unqualified

[harendra-kumar]

If a module is imported qualified as well as unqualified then docs for re-export appear twice. For example:

module Streamly.Internal.Data.Array
    (
      module Streamly.Internal.Data.Array.Type
    )

where

import qualified Streamly.Internal.Data.Array.Type as A
import Streamly.Internal.Data.Array.Type

I noticed the docs for the entire module appearing twice and it was difficult to isolate what the problem was.

[Kleidukos]

Hi, thank you for this ticket, but Haddock now lives full-time in the GHC repository!
Read more at https://discourse.haskell.org/t/haddock-now-lives-in-the-ghc-repository/9576.

Let me know if you feel it is still needed, and I'll migrate it. :)