EditorField label is not queryable by label with plugin-e2e package

[idastambuk]

What happened:
When testing query editor page.getByLabel() from the e2e package for Min step and Exemplars fields returns undefined. We should investigate why this is happening, since Prometheus type, that doesn't use EditorField, works fine.

What you expected to happen:

How to reproduce it (as minimally and precisely as possible):

Screenshots

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Environment:

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• Plugin version:
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