resolve references before validating the discriminator

[dfeufel]

fixes #1554

What issue does this pull request resolve?

What changes did you make?

Is there anything that requires more attention while reviewing?

[epoberezkin]

Great - added some comments, it’s quite a common request.

please also update the docs to mention that single $refs (that is, without siblings) are now supported as well.

[epoberezkin]

CI runs a bit more combinations of options than run locally by default, it uses:

AJV_FULL_TEST=true npm test

Maybe that’s the difference?

See the test output in CI.

[epoberezkin]

So you can try locally with the same env variable

[epoberezkin]

Thanks for the change, it definitely improves the usability of discriminator - only supporting inlined schema was an annoying restriction...

There couple of comments I wanted to amend - let me know if it's ok I do it?

[dfeufel]

Sure, feel free.