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The additional dash and 2 digits at the end of the violations are known as a "Ticket PIN".
It 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.
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.
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