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Got a strange thing today - once page is refreshed, the tree state (opened nodes) is lost and displayed again with all nodes collapsed. But the node expansion arrows do show the correct state - "expanded"...
Take a look at thetwo screenshots - first one displays the tree after several nodes were expanded. Second - how the tree looks like after the browser page is refreshed - note, that arrow icons and node icons are displaying the correct state, however no expanded children are rendered.
If double-click the expanded arrow (to collaps and expand node again) everything is drawn correctly.
Could someone give me a glue where to dig ? Could it be an error in my implementation of hierarchial container (it is filesystem container based, just the hierarchy datasource changed - we pull data from the database)