The additional dash and 2 digits at the end of the violations is are known as a "Ticket PIN".
I may look like it's part of the ticket number, but it's not. It's only used as a password for the ticket when appealing it.
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As an example when creating a violation, it appeared as : 2-001017-12. The actual internal ticket number is 2-001017, same format as it has always been. If you search violation 2-001017 in violation search it will appear as 2-001017. Additionally, if someone did type in the ticket number and PIN (2-001017-12) it would return the same ticket.
This means the reports in the FTP file, for example, will only reference 2-001017-12 as the ticket number, not the additional -12.
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FTP reports will remain unchanged by the addition of the violation PIN. No PIN will be shown in the mailed out the violation.
The PIN is only used when appealing tickets if the user isn't logged in. As an example, you can see the "Appealing a Ticket" box on the log in login screen here.
The pin is used in that box to give some protection from public users just looking up sequential ticket numbers.
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