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[FIXED] doLayout or doComponentLayout on infinity scroller
We are calling doLayout or doComponentLayout from the toolbar attached to an infinite-scrolling grid when the associated store gets a load event. Calling either layout function resets the scrollbar to the top of the grid.
Thanks for the bug report. This was a problem within AbstractDock's renderItems method where the position was being incorrectly calculated and therefore moving the scroller each time it was laid out.
This has already been resolved for the next release.