@Override
	boolean contains(ComponentPlaceholder info) {
		if (child1 != null && child1.contains(info)) {
			return true;
		}
		if (child2 != null && child2.contains(info)) {
			return true;
		}
		return false;
	}
Constructs a new SplitNode from the XML JDOM element
@param elem the XML JDOM element containing the configuration information.
@param mgr the DockingWindowsManager for this node.
@param parent the parent node for this node.
@param restoredPlaceholders the list into which any restored placeholders will be placed
Ghidra/Framework/Docking/src/main/java/docking/SplitNode.java