Update formly-field-select.html

Author: antoinepairet

src/directives/formly-field-select.html

@@ -9,7 +9,7 @@
 			ng-required="options.required"
 			ng-disabled="options.disabled"
 			ng-init="value = options.options[options.default]"
-			ng-options="option.name group by option.group for option in options.options">
+			ng-options="option.value as option.name group by option.group for option in options.options">
 	</select>
   <p id="{{id}}_description" ng-if="options.description">{{options.description}}</p>
-</div>
+</div>