Trying to add a new dataset breaks the frontend.

When I click the "New Resource"-button in the dataset category, I get the error message: Uncaught (in promise) Error: can't resolve reference #/definitions/ControlledField from id /hmc_schemas/dataset/1_0_2/hmc_dataset.json

That sounds, to me, like the schema isn't processed properly, so maybe this is actually an issue for the backend.

Also, the frontend completely stops working after this click and I have to manually reload the page!