indent: Unexpectedly removes content

[duncandewhurst]

I happened upon some unexpected behaviour when I tried to indent a file that contained non-unique keys under /definitions/Award.

To reproduce:

curl -LOJ https://gist.github.com/duncandewhurst/848ac5dc8bd101ead02badd188898281/raw/f4b6f5e0760ddd8a8efb0ee18d3aa5561d61fc02/release-schema.json
ocdskit indent release-schema.json

Result: one of the properties keys under /definitions/Award is removed.

[jpmckinney]

Hmm, any software that reads and writes JSON is very likely to remove duplicate keys, because the internal representation is typically a dictionary, which cannot have duplicate keys. We'd need to write our own data structure. However, such inputs are rare, and generally JSON with duplicate keys is discouraged (e.g. RFC 7493). So, I'll mark this as wontfix.