This!!
I had actually submitted a ticket for the exact same weapon, problem and question. Unfortunately, the helpdesk was unable to do anything (I didn’t even ask for my ingots back; just wanted to get rid of the upgrade!)
I’d say there are three options to deal with this:
- Change the behaviour to destroy the gem after the initial gem links have finished
- Add a feature to undo weapon upgrades
- Replace the “destroy gems” upgrade on weapons that create (or convert) gems and replace it with something else (anything will be an upgrade from this!)