Fix normalization of partially-saturated folds #47
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Noticed a couple of minor bugs while putting together a PR to remove this code, which was a temporary fix to emulate a bug in the Haskell implementation.
I don't want to actually remove this code until there's a new dhall-haskell release with the fix there, so I'm fixing the bug here for now.
The issue is pretty minor, and I think should only affect cases where you try to type-check a normalized expression with a partially-applied fold:
After this change:
Thankfully this whole terrible hack will be gone soon!