"required" question

Hello!

Given the following XForms snippet:

<group xmlns="wordswords...Xforms" required="not(//userid)" id="l">
  <caption>User Login</caption>
  <input required="true()" id="u">
    <caption>username</caption>
  </input>
  <secret required="true()" id="p">
    <caption>password</caption>
  </secret>
  <input id="d">
    <caption>domain</caption>
  </input>
  <submit submitInfo="s">
    <caption>Login</caption>
  </submit>
</group>

Is the resulting domain field required? If so how do I make it not
required?


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