steps to reproduce

run the attached example
click the node 'aaa'

actual result

the child node ("aaa-1") is selected correctly in the treemodel (at server side)
at client side the node remains selected (keeps the z-treeitem-selected style)

expected result

node "aaa" should not have the selected style, and when opening it
the node "aaa-1" should be highlighted as selected

debug info

If the node was opened before, there is no problem

Workaround

commented out in the example
#1) call removeFromSelection() before adding the child node
#2) instead of calling addToSelection call setSelection