Drowning zombies no longer always drop worn armor

Even after reading through the release notes I still don't know if this is intended behavior (and I did search).  On 1.14.60 and earlier versions I used to do quite a trade in nuggets by luring armor wearing zombies into deep water and letting then drown.  They always dropped all worn and carried items.  They no longer do this all of the time, it seems to be about 50-50 now.  Zombies wearing armor will convert to drowned and the drowned is still wearing the armor.