if you have a two handed staff, and you very quickly click on the primary hand slot... over and over again, whatever stats the staff provides will be deducted from the character, in my case I was testing with a staff which had +2 con, +5 wis, +37 energy; while having negative stats is not really something you want, what the energy does is interesting... when the energy value reaches 0 the variable where the data is being stored "rolls" over and you end up with 2,000,000,000 energy; so if you had a two handed staff that does nothing but "give" energy you could lap the variable over to get 2 billion energy and then put on another staff that gives whatever stats you actually want.
you have to left click very rapidly, working with a few other people via discord chat one user was also able to get the item to duplicate; the user reported that if you delete the duplicated item the "original" item also gets deleted as well.
server name: New Telon
chunk: Isle of Dawn (1)
location: 10678 -13477 1740
severity: Severe (e.g. Exploitable)
reproduce: Every time
updated: 2020/11/11 14:46:51
Entered on Nov 11, 2020 14:11 by Jakkal I confirmed this, that it does happen if you very quickly switch the weapon in and out.