little fix

src/ui/view/PropertyTable.java

@@ -9,13 +9,11 @@ public class PropertyTable extends DefaultTableModel {
 	@Override
 	public Class<?> getColumnClass(int columnIndex) {
 		Class clazz = String.class;
-		if (getRowCount() == 2) {
 			switch (columnIndex) {
 			case 3:
 				clazz = Boolean.class;
 				break;
 			}
-		}
 		return clazz;
 	}
 }