fix(系统营销模板):修复优惠券中，上传背景图设置，上传成功后，前端未展示

src/pages/exchangepage/edittemplate/couponCard/goodsPage/config/backPicture.js

@@ -18,8 +18,9 @@ export default class backPicture extends React.Component {
   componentWillMount(e) {
     let config = JSON.parse(sessionStorage.getItem('editorConfig'));
     if (config && config.coupon && config.coupon.product_list) {
-      let { bgimg } = config.coupon.product_list.backgroundImg;
-      this.setState({ bgimg });
+      let bgimg = config.coupon.product_list.backgroundImg.bgImg;
+      let {bgColor} = config.coupon.product_list.backgroundImg;
+      this.setState({ bgimg,bgColor });
     }
   }
   bgColorFn(color){