I have two trees, first local (tree1) without child nodes, and second (tree2) async by ajax.

I'm use tree2 for loading filetree fom server and drag'n'drom his nodes (folders, files) to tree1. Then I submit form and passing all nodes from tree1 to server.

When i d'n'd folder node from tree2 to tree1 and then open it, i see reloading of tree2, and expanding node in tree1.

And when i do:
var array = Tree1.getRootNode().childNodes;
In array i see only d'n'd-ed nodes, not that i load after d'n'd, but visualy i can see all nodes.