We should implement a workaround for these upstream bugs:
* https://phabricator.wikimedia.org/T149410 - For consistency MediaInfo serialization should use "claims" as key, rather than "statements"
* https://phabricator.wikimedia.org/T246809 - Inconsistencies between Wikidata and Structured Data about Snak's "datatype" from wbgetentities API results