mangosR2/mangos — comment on commit 3cb2acbb0880de2861ab615e27ae4740f08b81c0
File:  line 0
By michalpolko:

well, looking into the code:

combatReach = GetObjectScale() * BASE_MELEERANGE_OFFSET;

here's the cause of the problem...

So... If this has to fix melee dist for players in pvp, then don't change anything related to Creatures. Try reverting those parts of code and test with players and creatures.