I cloned an Event including its social share button. The cloned share button was still approved unlike all the other assets that were cloned. So I deleted the share button from the registration and confirmation landing pages where it was displayed. However there isn't a menu option to Unapprove the share button and when I try to delete it, an error message is displayed indicating that the share button is used in landing pages and can't be deleted. Is there a way to do this or is this a bug?