Method add

src/main/java/com/codeslap/persistence/Node.java:60–66

(Node node)

        } while (true);
        List<Node> allButMe = new ArrayList<Node>() {
            @Override
            public boolean add(Node node) {
                if (contains(node)) {
                    return false;
                }
                return super.add(node);
            }
        };
        if (root.mContent != mContent) {
            allButMe.add(root);