Broken revisions links

[LightAndLight]

Example page: https://hackage.haskell.org/package/aeson-2.2.3.0/revisions/

For each revision there are two links in the leftmost column (at the time of writing). The first is -r4 (target: https://hackage.haskell.org/package/aeson-2.2.3.0/revision/4.cabal), the second is aeson-2.2.3.0-r4 (target: https://hackage.haskell.org/package/aeson-2.2.3.0/revision/aeson-2.2.3.0-4.cabal).

Only the first link works. When I visit the second, I get a page saying:

Package revision not found

Cannot parse revision, or revision out of range.