I do however still have the issue of scrolling to Row 0 after setting or patching the data. Looking into the source code, I found that on every patch, the element.scrollTop is set to this._lastVerticalScrollbarTopPosition. However, as far as I can see, this variable is initialised to 0, but never set to any other value. As such the scroll position is manually set to 0 on every patch.
Did I perhaps miss the point where the _lastVerticalScrollbarTopPosition is set, or is there a valid reason to always have the scroll position set it to 0?