Fixed a bug where keys where serialised twice

ptrie/fullnode.go

@@ -23,7 +23,9 @@ func (self *FullNode) Branches() []Node {
 func (self *FullNode) Copy() Node {
 	nnode := NewFullNode(self.trie)
 	for i, node := range self.nodes {
-		nnode.nodes[i] = node
+		if node != nil {
+			nnode.nodes[i] = node
+		}
 	}
 
 	return nnode
@@ -60,7 +62,6 @@ func (self *FullNode) RlpData() interface{} {
 func (self *FullNode) set(k byte, value Node) {
 	if _, ok := value.(*ValueNode); ok && k != 16 {
 		fmt.Println(value, k)
-		panic(":(")
 	}
 
 	self.nodes[int(k)] = value