osTicket version 1.8.0.1, Apache/2.2.22, PHP 5.4.4, MySQL 5.5.34.When I add fields to a custom form I can define variable names (see image).The tooltip says that such variables are available in email templates but it doesn't work.In the example image I attached I defined three variable names: "s" "f" and "d".I expected to be able to use such variables in a new ticket alert template as %{ticket.s}, %{ticket.f}, %{ticket.d}.This doesn't work, such variables in the email template are just ignored.I had a look to the source code and it looks to me that such feature is not implemented at all in 1.8.0.1.Am I correct?