RK - Skill Point Loss through Berserk

When skill point Berserk is set as LK and changing to RK, Berserk is getting unset again and 2nd tab requires another point which is intended for 3rd tab.
Even after resetting the skill point put into Berserk is still lost. So there's a point missing.

I'm aware of that Berserk requires job level 50 but I doubt that this still counts for RKs.
According to Admin Byte this has been fixed in rAthena r17262.