GUACAMOLE-292: Use ngIf to determine visibility of guacFormField. Using ngShow collides with the ngShow used internally on the guacFormField directive's root element.

guacamole/src/main/webapp/app/form/templates/form.html

@@ -8,7 +8,7 @@
         <!-- All fields in form -->
         <div class="fields">
             <guac-form-field ng-repeat="field in form.fields" namespace="namespace"
-                             ng-show="isVisible(field)"
+                             ng-if="isVisible(field)"
                              field="field" model="values[field.name]"></guac-form-field>
         </div>