Hi team,
I've opened this topic on Snowplow discourse. I did some digging, and it seems like it's not possible to do that easily with the current collector.
I've written a small update to the collector code to take the oldCookieName into consideration while mapping the old value to the new cookie name.
I'm not really efficient in Scala so hopefully, you can help me out with making this better :) The first thing would be to point me to someplace where I could add some unit tests I guess.
cheers :)