List<PolytomousKeyNode> children;
if (parent instanceof PolytomousKeyNode) {
- ((PolytomousKeyNode) parent).removeNullValueFromChildren();
+// ((PolytomousKeyNode) parent).removeNullValueFromChildren();
children = ((PolytomousKeyNode) parent).getChildren();
} else if (parent instanceof PolytomousKey) {
children = new ArrayList<PolytomousKeyNode>();