Submitting the form will send the following values to the IdP:

actionhttps://login.microsoftonline.com/3b856d4f-062d-4733-b030-f94a22097f36/saml2
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
RelayState_74c423a2-ca85-46fb-b4bb-e8e4eb7eeb6c