[2.50.1/2] Spin Attack Magic Cost Glitches

[Tamamo]

I can confirm something is seriously wacky here. Here is the code, and i didn't change a thing.

    // charging up weapon...
    //
    if(((attack==wSword && attackclk==SWORDCHARGEFRAME && itemid>=0 && isWpnPressed(itype_sword)) ||
#if 0
            (attack==wWand && attackclk==WANDCHARGEFRAME && itemid>=0 isWpnPressed(itype_wand)) ||
#endif
            (attack==wHammer && attackclk==HAMMERCHARGEFRAME && itemid>=0 && isWpnPressed(itype_hammer))) && z==0 && checkmagiccost(itemid)) //this check prevents that
    {
        // Increase charging while holding down button.
        if(spins==0 && charging<magiccharge)
            charging++;
            
        // Once a charging threshold is reached, play the sound.
        if(charging==normalcharge)
        {
			paymagiccost(itemid);
            sfx(WAV_ZN1CHARGE,pan(int(x)));
        }
        else
        {
            itemid = current_item_id(attack==wHammer ? itype_quakescroll2 : itype_spinscroll2);
            
            if(itemid>-1 && charging==magiccharge && checkmagiccost(itemid))
            {
                paymagiccost(itemid);
                charging++; // charging>magiccharge signifies a successful supercharge.
                sfx(WAV_ZN1CHARGE2,pan(int(x)));
            }
        }
    }