If a user sets a magic cost on the spin attack, and does not have enough MP to use it, ZC will repeatedly swing the sword for as long as the player holds the corresponding button, trying to charge it. This may also be true of quake hammer, but I have not verified it.
Reported by Evan, video link here: https://youtu.be/GR1__1U7224
Note: I believe this is because paymagiccost(itemid); isn't set at the correct time, when determining if the sword charge should occur. I do not know if he had this problem in 2.50.1, or 2.50.2, or both; or if it affects all builds of 2.50, as I have not yet had time to test it in all three.
