This apply to any mobs that have the ability to spawn reinforcement, including drowned. The problem is that it probably doesn't check for entity type.
Affects 1.14.4
Left Pic= Before, Right Pic= After
I cant do anything, just walk around and fly; :/
Im having the SAME problem in 1.8 except I have a PC
So, I remembered getting different types of fish from killing guardians, and I did a command block to kill a lot of guardians, but they only drop cod.
I looked it up to see if this is normal but I don't seems to find any result.
I went to do some testing again and apparently rare fish drops only when killed by player.