There appears to be some impedance mismatches between GitLab's formatting and Trac's formatting in certain places. For example, see the bottom of this issue [1], which has a long, hyperlinked line with the phrase:

    Icanproducethe`missinginstance`issuewithouthavingtorecompileGHC,whichiswhyIthinkitmightbeindependentofthisbug.

Ryan S.

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[1] https://gitlab.staging.haskell.org/ghc/ghc/issues/16211