楚江ERP-查询可撤销/变更的订货单数据接口bug修复

@@ -182,9 +182,9 @@
             AND tb.type ='PRODUCTION'
             </when>
             <when test="vo.queryType == 'CHANGE'">
-                and tb.examine_status = 'PASS'
-                and tb.status != 'SHIPPED'
-                and tb.revoke_status != 'UNDOING'
+                AND tb.examine_status = 'PASS'
+                AND tb.status != 'SHIPPED'
+                AND (tb.revoke_status != 'UNDOING' OR tb.revoke_status IS NULL)
             </when>
             <otherwise>
                 AND 1 = 0  <!-- 确保查询不到任何数据 -->