przemratajczak/mangos — comment on commit dbb0607a83bbb124fea34a1ffecdfd310f69b9a1
File:  line 0
By michalpolko:

Thx for digging it out ;) It came out that it is making target fully immune to the spell, proper solution should be this https://github.com/przemratajczak/mangos/commit/7811d4ee8931ebf3174f11acad9393514f276eb5 but not tested yet.