Aliasing records pattern matching break if space exists

This snippet is parsed successfully:

data X = X {unX :: Int, unY :: Bool}
foo :: X -> Bool
foo x@X{unY = bb} = True

But after adding spaces:

data X = X {unX :: Int, unY :: Bool}
foo :: X -> Bool
foo x @ X{unY = bb} = True

I get '[hlint] Parse error'

I'm using haskell-ide-engine in vs code
Version: PS D:\dev\pandoc> hlint --version HLint v2.1, (C) Neil Mitchell 2006-2018

If I run hlint from command line, I don't see this warning...

hlint .\src\Text\Pandoc\Readers\Man.hs
.\src\Text\Pandoc\Readers\Man.hs:47:1: Suggestion: Unnecessary hiding
Found:
  ?[32;4mimport?[0m?[0m ?[0m?[0mText?[0m?[36m.?[0m?[0mPandoc?[0m?[36m.?[0m?[0mParsing?[0m?[0m ?[0m?[0mhiding?[0m?[0m ?[0m?[36m(?[0m?[0menclosed?[0m?[36m)?[0m
Why not:
  ?[32;4mimport?[0m?[0m ?[0m?[0mText?[0m?[36m.?[0m?[0mPandoc?[0m?[36m.?[0m?[0mParsing?[0m

.\src\Text\Pandoc\Readers\Man.hs:75:49: Warning: Redundant bracket
Found:
  ?[36m(?[0m?[0mManState?[0m?[36m{?[0m?[0mpState?[0m?[0m ?[0m?[31m=?[0m?[0m ?[0m?[0mdef?[0m?[36m,?[0m?[0m ?[0m?[0mrState?[0m?[0m ?[0m?[31m=?[0m?[0m ?[0m?[0mdef?[0m?[36m}?[0m?[36m)?[0m
Why not:
  ?[0mManState?[0m?[36m{?[0m?[0mpState?[0m?[0m ?[0m?[31m=?[0m?[0m ?[0m?[0mdef?[0m?[36m,?[0m?[0m ?[0m?[0mrState?[0m?[0m ?[0m?[31m=?[0m?[0m ?[0m?[0mdef?[0m?[36m}?[0m

.\src\Text\Pandoc\Readers\Man.hs:79:13: Suggestion: Move brackets to avoid $
Found:
  ?[35m"Pandoc: "?[0m?[0m ?[0m?[36m++?[0m?[0m ?[0m?[36m(?[0m?[0mshow?[0m?[0m ?[0m?[36m$?[0m?[0m ?[0m?[0munMeta?[0m?[0m ?[0m?[0mm?[0m?[36m)?[0m
Why not:
  ?[35m"Pandoc: "?[0m?[0m ?[0m?[36m++?[0m?[0m ?[0m?[0mshow?[0m?[0m ?[0m?[36m(?[0m?[0munMeta?[0m?[0m ?[0m?[0mm?[0m?[36m)?[0m

.\src\Text\Pandoc\Readers\Man.hs:115:20: Suggestion: Use unwords
Found:
  ?[34mconcat?[0m?[0m ?[0m?[36m$?[0m?[0m ?[0m?[0mintersperse?[0m?[0m ?[0m?[35m" "?[0m?[0m ?[0m?[0margs?[0m
Why not:
  ?[34munwords?[0m?[0m ?[0m?[0margs?[0m

.\src\Text\Pandoc\Readers\Man.hs:146:29: Suggestion: Use void
Found:
  ?[34mmodifyRoffState?[0m?[0m ?[0m?[36m(?[0m?[31m\?[0m?[0m ?[0m?[0mrst?[0m?[0m ?[0m?[31m->?[0m?[0m ?[0m?[0mrst?[0m?[36m{?[0m?[0minCodeBlock?[0m?[0m ?[0m?[31m=?[0m?[0m ?[0m?[0minsideCB?[0m?[36m}?[0m?[36m)?[0m?[0m ?[0m?[36m>>?[0m?[0m ?[0m?[0mreturn?[0m?[0m ?[0m?[0m()?[0m
Why not:
  ?[0mControl?[0m?[36m.?[0m?[0mMonad?[0m?[36m.?[0m?[0mvoid?[0m?[0m
  ?[0m?[0m  ?[0m?[36m(?[0m?[0mmodifyRoffState?[0m?[0m ?[0m?[36m(?[0m?[31m\?[0m?[0m ?[0m?[0mrst?[0m?[0m ?[0m?[31m->?[0m?[0m ?[0m?[0mrst?[0m?[36m{?[0m?[0minCodeBlock?[0m?[0m ?[0m?[31m=?[0m?[0m ?[0m?[0minsideCB?[0m?[36m}?[0m?[36m)?[0m?[36m)?[0m

.\src\Text\Pandoc\Readers\Man.hs:180:28: Suggestion: Redundant bracket
Found:
  ?[0mString?[0m?[0m ?[0m?[31m->?[0m?[0m ?[0m?[36m(?[0m?[0mMaybe?[0m?[0m ?[0m?[0mInline?[0m?[36m)?[0m
Why not:
  ?[0mString?[0m?[0m ?[0m?[31m->?[0m?[0m ?[0m?[0mMaybe?[0m?[0m ?[0m?[0mInline?[0m

6 hints

But I see unix-terminal special ascii charcters, which are not supported by powershell

Start by reproducing the two alias-pattern snippets with HLint v2.1 and compare the parser behavior for the versions with and without spaces. The issue names no source file or test; done means the spaced pattern parses without a parse error while the existing command-line hints continue to work.