[GHC] #16199: GHC 8.6's bundled version of transformers doesn't correspond to a Hackage release

[GHC]

#16199: GHC 8.6's bundled version of transformers doesn't correspond to a Hackage
release
-------------------------------------+-------------------------------------
           Reporter:  RyanGlScott    |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  highest        |         Milestone:
          Component:  libraries      |           Version:  8.6.3
  (other)                            |
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:  #14678
Differential Rev(s):                 |         Wiki Page:
-------------------------------------+-------------------------------------
 GHC 8.6 claims to be bundled with `transformers-0.5.5.0`, but this isn't
 true. That's because it's using transformers commit
 ​https://gitlab.haskell.org/ghc/packages/transformers/tree/80557845cdc0e72bc05cec19cf7a1bf5495e9e69,
 which happened //after// the commit corresponding to the Hackage release
 of 0.5.5.0
 (https://gitlab.haskell.org/ghc/packages/transformers/commit/33b3c8a71778ae37040088dfe022c648373777a8).

 This is not the first time this has happened: see #14678. While we were
 able to catch #14678 before a major release was shipped, but
 unfortunately, that didn't happen this time.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/16199>
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