Bugged Diamond Pickaxes [New Rare?]

Eariler this week I found a bug with mining and pickaxes, *background info* each pickaxe has a set durability, until it breaks. But the bug let you keep mining after the durability hit 0, and the pick should've broke.
This makes me curious if this is 'counted' as a rare? I tested with 5 different pickaxes, each having there own negative level. At the time of posting, the bug seems to be fixed.

Here are the bugged diamond pickaxes:





To see weapon durability/hits left do F3 + H

As (i'm assuming) this is a 'rareish' item, post offers below. Ones I like ill take, and reply if im not a big fan.
~Cheers, Alpha.

 

Uh, pretty sure it's a bug due to the over enchantment of the pickaxe due to /God. Anyone can make them by using a godded pickaxe

 

@Mods before Abuse.

 

The bug was fixed and these seem to be the only bugged ones.

 

I'll buy all 4 for 20 diamonds.

 

I only have two left, two for 10 diamonds?

 

I'll buy em both for 11 diamonds.

 

Sure!

 

Nevermind, I bought from someone else. Sorry.

 

wow.