复制整块问题

app/base/base_bills_service.js

@@ -595,9 +595,9 @@ class BaseBillsSerivce extends TreeService {
                             in_time: new Date(),
                             porder: pos.porder,
                             position: pos.position,
-                            sgfh_expr: pos.sgfh_expr,
-                            sjcl_expr: pos.sjcl_expr,
-                            qtcl_expr: pos.qtcl_expr,
+                            sgfh_expr: pos.sgfh_expr ? pos.sgfh_expr : '',
+                            sjcl_expr: pos.sjcl_expr ? pos.sjcl_expr : '',
+                            qtcl_expr: pos.qtcl_expr ? pos.qtcl_expr : '',
                             add_stage: 0,
                             add_times: 0,
                         };