Marking duplicate tickets on Trac just got a bit smarter and easier. Now, when you mark a ticket a duplicate, you specify the other ticket. A comment will be cross-posted there that references the duplicate, so you don’t have to.
You can optionally include a comment and any other ticket property changes, as before. If your comment doesn’t include a reference to the ticket, it’ll automatically add it.
A side effect of how the plugin is written (it’s a modified version of this one) is that no email notification is sent for the “#___ was marked as a duplicate.” This is great because it avoids a double-email (that until now would happen manually). On the other hand, if you consume Trac via your inbox like me, you might expect that the next email is the other ticket, floated to the surface again. I’ll leave it as is for now.