解决在出入库管理开启的模式下，如果删除其它入库页面的单据，然后采购入库里面的图片跟着丢失的bug

jshERP-boot/src/main/java/com/jsh/erp/service/DepotHeadService.java

@@ -1668,6 +1668,7 @@ public class DepotHeadService {
             depotHead.setAccountId(null);
             depotHead.setAccountIdList(null);
             depotHead.setAccountMoneyList(null);
+            depotHead.setFileName(null);
             depotHead.setSalesMan(null);
             depotHead.setStatus("0");
             depotHead.setTenantId(null);