Making second child of SlidingUpPanelLayout invisible breaks touch handling.

Created by: Lingviston

I have SlidingUpPanel with dragView attribute set. On touching the first child I hide the second one, on the second touch I show it again. After hiding-showing second child dragView doesn't response to touch event anymore i.e. I can't drag it or tap to expand the slidingUpPanel.

I've just updated my dependency from the very old module where was no such issue.