From 4245ab41519db179249ba7755d131e104e43502c Mon Sep 17 00:00:00 2001
From: Hans Van Akelyen <hans.van.akelyen@gmail.com>
Date: Fri, 24 Jul 2026 17:12:03 +0200
Subject: [PATCH] value mapper dialog did not work correctly in hop web, fixes
 #4475

---
 .../hop/pipeline/transforms/valuemapper/ValueMapperDialog.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/plugins/transforms/valuemapper/src/main/java/org/apache/hop/pipeline/transforms/valuemapper/ValueMapperDialog.java b/plugins/transforms/valuemapper/src/main/java/org/apache/hop/pipeline/transforms/valuemapper/ValueMapperDialog.java
index a08d3e0cdd..5701f5c764 100644
--- a/plugins/transforms/valuemapper/src/main/java/org/apache/hop/pipeline/transforms/valuemapper/ValueMapperDialog.java
+++ b/plugins/transforms/valuemapper/src/main/java/org/apache/hop/pipeline/transforms/valuemapper/ValueMapperDialog.java
@@ -273,6 +273,9 @@ private void getFields() {
   /** Copy information from the meta-data input to the dialog fields. */
   public void getData() {
     if (input.getFieldToUse() != null) {
+      if (wFieldName.indexOf(input.getFieldToUse()) < 0) {
+        wFieldName.add(input.getFieldToUse());
+      }
       wFieldName.setText(input.getFieldToUse());
     }
     if (input.getTargetField() != null) {