diff --git a/base/src/org/compiere/model/ModelValidationEngine.java b/base/src/org/compiere/model/ModelValidationEngine.java
index b8b7e8829a..c42f0ecf1d 100644
--- a/base/src/org/compiere/model/ModelValidationEngine.java
+++ b/base/src/org/compiere/model/ModelValidationEngine.java
@@ -49,6 +49,8 @@ import org.compiere.util.KeyNamePair;
  * 					https://sourceforge.net/tracker/?func=detail&aid=2804135&group_id=176962&atid=879332
  * 				<li>BF [ 2819617 ] NPE if script validator rule returns null
  * 					https://sourceforge.net/tracker/?func=detail&aid=2819617&group_id=176962&atid=879332
+ * @author victor.perez@e-evolution.com, www.e-evolution.com
+ * 				<li>BF [ 2947607 ] Model Validator Engine duplicate listeners 
  */
 public class ModelValidationEngine 
 {
@@ -431,8 +433,8 @@ public class ModelValidationEngine
 			list.add(listener);
 			m_docValidateListeners.put(propertyName, list);
 		}
-		else
-			list.add(listener);
+		//else
+		//	list.add(listener);
 	}	//	addDocValidate
 
 	/**
@@ -848,5 +850,11 @@ public class ModelValidationEngine
 			}
 		}
 	}
+	
+	public Hashtable geDocValidateListeners()
+	{
+	    return m_docValidateListeners;    
+	}
+	
 
 }	//	ModelValidatorEngine