Zombie Villager Curing Discounts are not Permanent

In 1.16.100 for MCBE, a change was made to the discounts villagers receive from curing a zombie villager, this change seemed to be a permanent change as a test was done on the duration of the effect and the villager didn't increase his prices at all which made the effect seem permanent

However in 1.16.200 (and the 1.16.201 hot fix) this seemed to have changed, curing a zombie villager applied the same discount as 1.16.100, however the effect is no longer permanent and lasts it seems somewhere from around 4-5 hours

Steps to Reproduce:

Cure a zombie villager and give the newly cured villager access to a bed and workstation, he should link to the bed and then the workstation giving him a profession

Expected Results:

The villager doesn't increase his prices 

Actual Results:

The villager will increase his prices after some time

The pictures provided show one villager who had been cured and received a single discount (18 paper) and the other who received a single discount but increased his price after waiting around 4-5 hours (19 paper)

I tested this by setting up 2 villagers, the first one was converted to a zombie villager then cured into a normal villager, the other was nearby the cured zombie villager. I did this to test both the direct discount and area of effect discounts that are applied to villagers. After somewhere around 4-5 hours, both villagers increased their prices despite never have been traded with and interacting with any other mobs or players