This crash happens when effect is SPELL_EFFECT_TALENT_SPEC_SELECT and the caster is not a player.
You should always check object's type (or sure that object is 101% a player) before you use ToPlayer() casting function.
Signed-off-by: Anubisss <[email protected]>
Passive auras are not dispelable.
This fixes a bug like spell Omen of Clarity (16864) can be dispelled by Purge (370) if you have a non passive aura like Mark of the Wild (1126).
Signed-off-by: Anubisss <[email protected]>