The bug
When creating a superflat world using the preset called "overworld" and editing it to have no lakes (removing the lake tag) the world is still generating water lakes.
MC-137956
Lakes still generate in superflat preset "Overworld" after removing its tag
Resolved
Fixed
5
(Unassigned)
Confirmed
(Unassigned)
Minecraft 1.13.2, Minecraft 18w43a, Minecraft 18w43b, Minecraft 18w45a, Minecraft 18w46a, , Minecraft 18w48b, Minecraft 18w49a, Minecraft 18w50a, Minecraft 19w02a, Minecraft 1.14.2
21w40a
Retrieved
I am unable to reproduce this in 1.17-pre5.