fix:收款单报错处理

src/main/java/com/yem/wm/fm/gathering/from/GatheringEcit.java

@@ -997,9 +997,11 @@ public class GatheringEcit extends AbstractBillPlugIn implements BeforeF7SelectL
                     // 查询配件客商额度申请单
                     DynamicObjectCollection returnData = (DynamicObjectCollection) e.getReturnData();
                     long productsId = 0;
+                    if (returnData != null) {
                         for (DynamicObject object : returnData) {
                             productsId = object.getLong("yem_productclassify.id");
                         }
+                    }
                     // 财务组织
                     DynamicObject orgId = (DynamicObject) this.getModel().getValue("org");
                     // 客户名称