Destroyer/Submarine collisions always leading to the destroyer being sunk=Not Fixed

[tonschk]

Hello , my first SH4 game after the 1,4 patch , the keel of a destroyer hit the Hull of my gato sub , the destroyer exploded and sank , the gato sub was OK zero damage , this bug was fixed with the patch 1.4 ? , after that, deep charges of another destroyer blow out the rudder of the sub, but on the damage screen the rudder was OK zero damage ,till now the SH3 Game is much better detailed and accurate than SH4