Fleets pass each other by??

[Krakenup]

Originally posted by [K126]Mephisto:
When both fleets are in adjacent squares, then it works like this:

Player A, which is moving to a planet and is on top of the player list, moves first and he moves into the fleet of Player B who is intercepting fleet A. Player A has now spent his movement point.

... but I thought that if Player A did not have a treaty with Player B, Player A's fleet would try to go around Player B instead of moving into the same sector. ??