Core/Auras: fix elixir aura saving

src/server/game/Spells/Auras/SpellAuras.cpp

@@ -1013,8 +1013,8 @@ bool Aura::CanBeSaved() const
     if (IsUsingCharges() && !GetCharges())
         return false;
 
-    // don't save auras triggered by items, they'll be recasted on login if necessary
-    if (GetCastItemGUID())
+    // don't save permanent auras triggered by items, they'll be recasted on login if necessary
+    if (GetCastItemGUID() && IsPermanent())
         return false;
 
     return true;