Fix onTouchEnd target when in a shadow root #5737
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For any element inside a shadow root `event.target` points to the shadow root, so a blur event is always evaluated to be outside of the select element. That means the dropdown opens on a touch start and closes when the touch ends.
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For any element inside a shadow root
event.targetpoints to the shadow root, so a blur event is always evaluated to be outside of the select element. That means the dropdown opens on a touch start and mistakenly closes when the touch ends.