Fix schema caching for multi-schema workspaces

[patsissons]

TODO:

• Make sure all of the significant new logic is covered by tests
• Rebase your changes on master so that they can be merged easily
• Make sure all tests pass
• Update CHANGELOG.md with your change
• If this was a change that affects the external API, update the README

Pull Request Labels

• feature
• blocking
• docs

resolves #178

[apollo-cla]

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[BPScott]

Ping @stubailo, as part of your recent flurry of updates, would it be possible to take a look at this? It's currently blocking a project of mine and @patsissons' from updating to the latest version.

[stubailo]

@BPScott right now I have 3 goals:

1. Fix the required-field rule to always work when fragments are involved Required fields and fragments #199
2. Add an auto-fix for that rule
3. Make sure schema loading is reliable, especially in the case of schemas changing while your editor is open

That said, let me take a look

[stubailo]

It seems like a pretty safe change 🤔 can you rebase and I'll try to release it?

[stubailo]

(Also that will ensure the build passes)
(Also sorry I moved some of the tests around, so hope it's not too bad)

[patsissons]

no rebase conflicts 👍

[stubailo]

🎉

[stubailo]

published in 3.0.1 - can you tag me on any relevant issues to be closed?

[patsissons]

#178 should be closed now thanks to resolved keyword in the description.