优化数据选择编辑器（请求接口）--fix1

src/components/app-upicker/app-upicker.vue

@@ -175,6 +175,7 @@ export default class AppPicker extends Vue {
 	 * @memberof AppPicker
 	 */
 	public extractItem(itemList:any[],items:any[]) {
+		this.items.length = 0;
 		itemList.forEach((item) => {
 			items.push({
 				label: item[this.interaction.label],