Fix bug where email was not required where it shouldn't have been
Fix bug where email was not required where it shouldn't have been

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Fixes https://github.com/vector-im/riot-web/issues/9681

matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk