Chill touch and holding the charge during battle

[Otodetu]

One player has chill touch caster level 7 cast, then casts magic weapon on his unarmed strike hand, does this discharge the chill touch?

Have a tournament and one player will not have been knocked out if the chill touch have been negated by the magic weapon spell.

http://www.d20srd.org/srd/spells/chillTouch.htm

Holding the Charge
If you don’t discharge the spell in the round when you cast the spell, you can hold the discharge of the spell (hold the charge) indefinitely. You can continue to make touch attacks round after round. You can touch one friend as a standard action or up to six friends as a full-round action. If you touch anything or anyone while holding a charge, even unintentionally, the spell discharges. If you cast another spell, the touch spell dissipates. Alternatively, you may make a normal unarmed attack (or an attack with a natural weapon) while holding a charge. In this case, you aren’t considered armed and you provoke attacks of opportunity as normal for the attack. (If your unarmed attack or natural weapon attack doesn’t provoke attacks of opportunity, neither does this attack.) If the attack hits, you deal normal damage for your unarmed attack or natural weapon and the spell discharges. If the attack misses, you are still holding the charge.

So, basically, is chill touch covered by the holding the charge rule, or a special rule?

Rapid reply please.

[sonofzeal]

It discharges, but I'd allow the Necromancer the chance to change his actions as a result since it's a disputed call.

[Otodetu]

I agree. Thank you, surfed a quick google too, and found out the same thing.