>Justification and use-case starts at <a href="https://github.com/ghc/ghc/commit/46a03fbec6a02761db079d1746532565f34c340f#diff-02e7842997523ff8a5ad0312df2edfe2L12435" rel="nofollow">https://github.com/ghc/ghc/commit/46a03fbec6a02761db079d1746...</a> if anyone was wondering.