*Spell target selection fix. Without this patch many spells are bugged.

--HG--
branch : trunk

src/game/Spell.cpp

@@ -164,6 +164,9 @@ void SpellCastTargets::Update(Unit* caster)
         if(m_itemTarget)
             m_itemTargetEntry = m_itemTarget->GetEntry();
     }
+
+    m_originalCasterGUID = m_caster->GetGUID();
+    m_originalCaster = m_caster;
 }
 
 bool SpellCastTargets::read ( WorldPacket * data, Unit *caster )