From 7641be96f6aed2bafc4924b322e1393d33eaae65 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9C=B1=E6=96=8C?= <1324361213@qq.com>
Date: Thu, 28 Aug 2025 11:06:55 +0800
Subject: [PATCH] 0

---
 T_IV_SALESIC/ServicePlugIn/Submit.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/T_IV_SALESIC/ServicePlugIn/Submit.cs b/T_IV_SALESIC/ServicePlugIn/Submit.cs
index 16fbb11..4dbe6ba 100644
--- a/T_IV_SALESIC/ServicePlugIn/Submit.cs
+++ b/T_IV_SALESIC/ServicePlugIn/Submit.cs
@@ -87,8 +87,8 @@ namespace GZ_LTHPilot_ORDER.T_IV_SALESIC.ServicePlugIn
             var saleOrder = saleOrderList[0];
             // 源纸质合同号
             var srcContractNo = saleOrder["F_SOURPAPERCONTRACT"]?.ToString();
-            // 如果原纸质合同号为空，则认为是源头单
-            if (srcContractNo.IsNullOrEmptyOrWhiteSpace())
+            // 如果原纸质合同号为空，则认为是源头单, 加上源单合同号 = 纸质合同号 是防止纸质合同号变更出错导致死递归
+            if (srcContractNo.IsNullOrEmptyOrWhiteSpace() || srcContractNo.Trim() == contractNo.Trim())
             {
                 return null;
             }