Hi, i am currently having the same problem here:. It is not all tickets however it is quiet annoying especially for my users of the system.
Has anyone found a resolution?
i found this site and applied the fix however this has not resolved the issue.
http://www.openscriptsolution.com/2009/09/03/how-to-avoid-duplicate-ticket-content-in-osticket-system(http://www.openscriptsolution.com/2009/09/03/how-to-avoid-duplicate-ticket-content-in-osticket-system)
Another resolution would be great!!