title: Angular toggle not working after submit
body: <p>I am playing around with Angular and came about an issue. The toggle I have set up on the Edit button works until I either click on the Save or Cancel button. Then it doesn't work anymore.</p>
  
  <p>Here is my Plunker: 
  <a href="http://plnkr.co/edit/Vy2WeUkk7jvIjp1z8Sfi" rel="nofollow">http://plnkr.co/edit/Vy2WeUkk7jvIjp1z8Sfi</a></p>
  
  <pre><code>&lt;section ng-controller="ContactController"&gt;
  &lt;ul class="list-group"&gt;
      &lt;li class="list-group-item" ng-repeat="contact in contacts"&gt;
          &lt;h3&gt;
              {{ contact.id }}
              &lt;em class="pull-right"&gt;{{contact.fname }} {{ contact.lname }} &lt;button ng-click="editing = !editing"&gt;Edit&lt;/button&gt;&lt;/em&gt;
              &lt;form ng-show="editing" ng-submit="editing = false" ng-controller="FormController"&gt;
                  &lt;input type="hidden" ng-model="contact.id"&gt;
                  &lt;label&gt;First Name:&lt;/label&gt;
                  &lt;input type="text" ng-model="contact.fname" placeholder="first name" ng-required/&gt;
                  &lt;label&gt;Last Name:&lt;/label&gt;
                  &lt;input type="text" ng-model="contact.lname" placeholder="last name" ng-required/&gt;
                  &lt;br/&gt;
                  &lt;button class="btn" ng-click="Save();" type="submit"&gt;Save&lt;/button&gt;
                  &lt;button class="btn" ng-click="editing = false"&gt;Cancel&lt;/button&gt;
                &lt;/form&gt;
          &lt;/h3&gt;
      &lt;/li&gt;
      &lt;/ul&gt;
      &lt;/section&gt;
  </code></pre>
  
  <p>Any help would be appreciated.</p>