Fix wrong keys data dump + internal ID field in dumps

[cdrini]

Closes #6348

• Partially revert 9403742 to make sure the process records is json.dumps and printed.
• Place filter in the righter ordering from 9403742
• Add unit tests!

Technical

Testing

• Kick off full data dump

curl -L 'https://archive.org/download/ol_dump_2022-03-29/ol_dump_authors_2022-03-29.txt.gz' | zcat | grep -F '/a/' | head -n1
/type/author      /authors/OL6725672A     2       2009-09-08T12:14:54.827520     {"bio": {"type": "/type/text", "value": "Translator to English of [Astrid Lindgren](/a/OL24950A)'s <i>Pippi Longstocking</i> (from Swedish) and works by [Knut Hamsun](/a/OL41785A) (from Norwegian)."}, "name": "Gerry Bothmer", "created": {"type": "/type/datetime", "value": "2009-09-08T12:12:46.444934"}, "last_modified": {"type": "/type/datetime", "value": "2009-09-08T12:14:54.827520"}, "latest_revision": 2, "key": "/authors/OL6725672A", "type": {"key": "/type/author"}, "revision": 2}

One match in the description -- all good!

Screenshot

Stakeholders

@cclauss @mekarpeles

[cclauss]

LGTM... Great to see the tests!

[cdrini]

Going to use this in a full data dump before merging to confirm everything is correct 👍

[cdrini]

All looks good!