Clear pointer / pointerStrip programmatically

[Xaeryan]

Is there a way to programmatically clear the selected pointer / pointerStrip when persistPointer is true?
For example, I have a refresh button. I would like the pointer to be cleared when Refresh is clicked, but still allow the user to select any point.
A re-render of the chart component doesn't seem to clear it, even if my data points change.