11.2.a only one concurrent submit per submission element Toyota Prius xforms-submit xforms-submit-done xforms-submit-error 11.2.a only one concurrent submit per submission element When you activate the Submit Twice submit control, you may see four messages: xforms-submit, xforms-submit-done, xforms-submit, and xforms-submit-done. You must NOT see an xforms-submit-error message. Submit Twice