Subframes with default values are not causing matches

[dlongley]

See: w3c/json-ld-syntax#19

I think that this is just a bug in the jsonld.js implementation, the matchesSome flag is not set to true when a default is set in the subframe but the key (states in that issue) is not present in the data.

Adding matchesSome = true before continuing here would fix it:
https://github.com/digitalbazaar/jsonld.js/blob/master/lib/frame.js#L471

Possible duplicate of #155.

[gkellogg]

I think this was for w3c/json-ld-framing#58.

[dlongley]

My understanding is that this has been fixed, closing. If not fixed, please reopen.