So I found this bug and if I stand in it I can travel to diff servers. I've been to Bleeding Hallow Stormwind City I know the citys are not CRZ so this is a big bug I would think.
Targeting a player and Able to attack them
This is the part where you got in and out to diff servers. It seems it only is the servers that your connected to via CRZ
http://i49.tinypic.com/1pz9uh.jpg
http://i50.tinypic.com/9k8i6v.jpg