title: ng-submit called twice in angular form
body: <p>I have gone through several questions regarding this issue, but none solved my issue</p>
  
  <p>I am using a form in which <strong>two submit type button calling same function</strong>. One button is send an extra variable with it on ng-click. when I submit my function is being called twice. </p>
  
  <p>I am using an approach told in the second answer of <a href="https://stackoverflow.com/questions/27025618/how-to-handle-multiple-submit-buttons-in-a-form-using-angular-js">this question</a> (mostly voted) </p>
  
  <p><em>I have not included controller as ng-controller in HTML</em></p>
  
  <pre><code>&lt;form ng-submit="SaveContent(Form)"&gt;
      &lt;button type="submit"&gt;Save&lt;/button&gt;
      &lt;button type="submit" ng-click="Data.IsSent = true"&gt;Save &amp; Send&lt;/button&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p>How to handle this issue ?</p>