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

actionhttps://login.microsoftonline.com/fef0d0ad-f7f9-4156-8b95-b5dc04d4e8bd/saml2
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
RelayState_4fb9d3d8-9bf1-4887-a3a3-b5665966ed44