If a requester responds to an old or irrelevant ticket, and you split the reply off using the "Split this as a new Ticket" function, the "Requester Responded" flag is still set.
Steps to reproduce:
1. Have a user open a ticket
2. Have the user respond to the ticket with a new problem. (This new problem should be a new ticket, but the user didn't follow protocol and updated an existing ticket rather than submitting a new one.)
3. Click the "Split this as a new Ticket" button on the irrelevant response. This will remove the irrelevant response and put it into a new ticket.
4. The "Requester Responded" flag will still be set on the original ticket, even though the response has been removed.
