When using the new tree.expandAll(true) method an TypeError occures

[ewya]

When using the new tree.expandAll(true) method an TypeError occures.

It seems that the (lastChild) node has not been rendered already (the affected node node.span is undefined).

browser's debug console:
TypeError: k(...).offset(...) is undefined at jquery.fancytree-all.min.js:33:15806

Steps to Reproduce the Problem

1. Load the tre with option autoScroll
2. trigger tree.expandAll(true)

[mar10]

tree.expandAll() wraps the recursive calls to multiple node.setExpanded() in enableUpdate(false) for improved performance.
=>
autoScroll should be ignored in this case as well, but called by enableUpdate(true) at the end of the sequence.