Elixir Enum.group_by converts integers to ASCII Chars

I think we have a new record - this issue being raised twice within 12 hours!

Elixir converting [55] into '7' (one of the responses on this thread provides excellent background & context into this weird & wonderful behaviour)

Don’t worry @jason.o - this is a rite of passage into Elixir. It gets everyone sooner or later!

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