Fixed unresponsive vue-select after clicking custom no-options (#703)

dev/dev.html

@@ -78,6 +78,9 @@
                 <em>{{ `${option.author.firstName} ${option.author.lastName}` }}</em>
             </template>
         </v-select>
+        <v-select placeholder="Vue select with custom option" >
+            <span slot="no-options">Custom no options message</span>
+        </v-select>
     </div>
 </body>