yes im well aware of that..hence the bug report
maxing out an item purchase (ex wheat) will stay maxed out..can never buy it again
if it helps i noticed this earlier today myself. if the villager was converted from a zombie it breaks the restock. i was able to trade/restock a normal villager just fine (this was in pre-3 i did not check previous builds)
this issue was present in pre3* and i commented on someone elses complaint about this