Feature request: Lock an item to prevent accidental discard, sell, convert or trade

[KisaiTenshi]

We currently have other tasks with higher priority, so we currently have no plans for this, but we will add this to our idea list for future consideration.

Please implement this. There's been a few times where I've turned in the gear for another class set and then when I go to use it, yellow triangle telling me that I'm missing gear. At the very minimum "lock this gear set from changes".