Adding multiple comments to a ticket will ignore the private flag and add all future messages as public.

[fabian-ahorner]

Steps to reproduce:

zendesk_ticket = Zendesk.client.tickets.find!(id: zendesk_id)
zendesk_ticket.update(:comment=>{ :body=>"Private message", :public=>false })
zendesk_ticket.save!

zendesk_ticket.update(:comment=>{ :body=>"Message that should be private but is public instead", :public=>false })
zendesk_ticket.save!