Exploit that allows enemies to get inside the opponent's base ( as demonstrated by Mirage starting at 37 minutes)

[v3rinalexander]

in the following match (matchid: 33646144 ) mirage decided that he has had enough. by creatively using tornado and magic caret he clipped out of bounds, flew into the creep tubes and proceeded to stall the outgoing waves by shooting them in the tube. It took some time for us to piece together what was happening and to deal mirage. Even though it is quite creative it is probably not intended behaviour, so either the area needs to be blocked off from the players or the creeps need to be invulnerable until outside of the base's walls.