fix issue with panels being destroyed twice when closed from a route
fix issue with panels being destroyed twice when closed from a route

iamxiaoma/Framework7,AdrianV/Framework7,framework7io/Framework7,nolimits4web/Framework7,iamxiaoma/Framework7,AdrianV/Framework7,nolimits4web/Framework7,iamxiaoma/Framework7,AdrianV/Framework7,nolimits4web/Framework7,iamxiaoma/Framework7,framework7io/Framework7