The bug

I set a custom villager trade with a lodestone compass, and when the lodestone was destroyed, the compass did not deactivate and still pointed to where the lodestone block used to be.

How to reproduce

1. Put a lodestone block at XYZ: 35, 56, 4 in the overworld:

   /setblock 35 56 4 minecraft:lodestone replace
   

2. Use the following command in a command block:

   /summon villager ~ ~1 ~ {VillagerData:{profession:farmer,level:99,type:plains},Invulnerable:1,PersistenceRequired:1,Silent:1,NoAI:1,CustomName:"\"compass\"",Offers:{Recipes:[{buy:{id:emerald,Count:1},sell:{id:compass,Count:1,tag:{LodestonePos:{X: 35, Y: 56, Z: 4},LodestoneDimension:"minecraft:overworld"},maxUses:9999999}}]}}
   

   → Notice how the compass in the villager trade interface points to the lodestone

3. Destroy the lodestone
   → Notice how the compass in the villager trade interface still points to where the lodestone used to be
4. Buy the compass from the villager
   → Notice how the compass has updated in both your inventory and the villager trade interface and no longer points to any location