Spell - Grab Crate - 62482 wrong？

[Barry Zhang]

case 62482: // Grab Crate
                {
                    if (!unitCaster)
                        return;

                    if (unitTarget)
                    {
                        if (Unit* seat = unitCaster->GetVehicleBase())
                        {
                            //if (Unit* parent = seat->GetVehicleBase())

this code wrong？

TrinityCore\src\server\game\Spells\SpellEffects.cpp

line 3558

can't work..