Mage weapons not altering skill

[wtfuzzy]

Bringing up a new shard based on p58-wip (as of 6934d92), I found equipping a mage weapon did not alter Magery skill. Tested with Ember Staff and various magic wands.

I've tracked the problem as far as 6b73fb1, which contains, amongst others, this change:

-                m_MageMod = new DefaultSkillMod(SkillName.Magery, true, -30 + m_AosWeaponAttributes.MageWeapon);
+                m_MageMod = new EquipedSkillMod(SkillName.Magery, true, -30 + m_AosWeaponAttributes.MageWeapon, this, from);

I'm sure it's not the real fix, but reversing this specific change restored mage weapons to their proper function (as far as I can tell, anyway).