So it seems now since a patch (1.5 maybe) when you repair a keep wall from the inside sometime it will just transport you outside the walls when it reaches the 90%.
This has caused me and my groups to end up being wiped a few times now and it's getting really annoying.
@Turelus - EU PC Megaserver"Don't count on others for help. In the end each of us is in this alone. The survivors are those who know how to look out for themselves."