修复发现好货请求不到数据bug review by 孙凯

@@ -144,6 +144,7 @@ export function getProductList(reload) {
             ? 1
             : products.currentPage + 1;
         let pageSize = products.pageSize;
+        let sourcePage = '';
 
         Promise.all([ReactNative.NativeModules.YH_CommonHelper.currentGender(), 
                      ReactNative.NativeModules.RNNativeConfig.uid(),