*Do not keep area aura targets in combat with aura owner

*Add some safety checks to area aura target map update.

--HG--
branch : trunk

src/game/Spell.cpp

@@ -1404,6 +1404,7 @@ SpellMissInfo Spell::DoSpellHitOnUnit(Unit *unit, const uint32 effectMask, bool
                     if(aurSpellInfo->SpellFamilyFlags[1] & 0x000020)
                         m_caster->CastSpell(unit, 41637, true, NULL, NULL, m_originalCasterGUID);
                 }
+                m_spellAura->_RegisterForTargets();
             }
         }
     }