Array value for `media` field in properties.json causes `Value not found in DB!` Error

[Konrud]

Setting array as the media field's value (in properties.json) causes "Value not found in DB!" error on the MDN page
for the following CSS properties:

1. cursor

2. outline

3. outline-color

4. outline-offset

5. outline-style

6. outline-width

7. page-break-after

8. page-break-before

9. page-break-inside

I can not find the code that parses these fields from the properties.json.