Fix [ 1881480 ] Navigation problem between tabs

base/src/org/compiere/model/GridField.java

@@ -1162,6 +1162,29 @@ public class GridField
 	//	m_propertyChangeListeners.firePropertyChange(PROPERTY, s_oldValue, null);
 	}   //  setValue
 
+	/**
+	 *  Set Value to null.
+	 *  <p>
+	 *  Do update context - called from GridTab.setCurrentRow
+	 *  Send Bean PropertyChange if there is a change
+	 */
+	public void setValueAndUpdateContext ()
+	{
+	//	log.fine(ColumnName + "=" + newValue);
+		if (m_valueNoFire)      //  set the old value
+			m_oldValue = m_value;
+		m_value = null;
+		m_inserting = false;
+		m_error = false;        //  reset error
+
+		// [ 1881480 ] Navigation problem between tabs
+		Env.setContext(m_vo.ctx, m_vo.WindowNo, m_vo.ColumnName, (String) m_value);
+
+		//  Does not fire, if same value
+		m_propertyChangeListeners.firePropertyChange(PROPERTY, m_oldValue, m_value);
+	//	m_propertyChangeListeners.firePropertyChange(PROPERTY, s_oldValue, null);
+	}   //  setValue
+
 	/**
 	 *  Set Value.
 	 *  <p>

base/src/org/compiere/model/GridTab.java

@@ -2190,7 +2190,16 @@ public class GridTab implements DataStatusListener, Evaluatee, Serializable
 //				Object value = null;
 //				if (mField.isKey() || mField.isParent() || mField.getColumnName().equals(m_linkColumnName))
 //					value = mField.getDefault();
-				mField.setValue();
+				
+				// CarlosRuiz - globalqss [ 1881480 ] Navigation problem between tabs
+				// the implementation of linking with window context variables is very weak
+				// you must be careful when defining a column in a detail tab with a field
+				// with the same column name as some of the links of the tabs above
+				// this can cause bad behavior of linking
+				if (mField.getColumnName().equals(m_linkColumnName))
+					mField.setValue();
+				else
+					mField.setValueAndUpdateContext();
 			}
 		}
 		loadDependentInfo();