tracking label changes

[ylafon]

It would be good to have the possibility to track changes of labels that can follow a certain pattern. If a group is identifying states using a set of labels, having changes of label on one issue within that label group would help figure out the state of the issue and make reports more meaningful. (like [ "triaged", "assigned", "pending feedback", "pending formal decision" ] )

[yatil]

I would love to see and harness that functionality. :-)