The Bug:
Abnormally small cherry grove biome (in an area of about 16 blocks)
How to reproduce:
Go to seed: 3417194084169670770
Go to coordinates: 750 88 -5
This issue is similar to MC-236907 but since I found this in the latest version of the game affecting one of the newer biomes I thought it was worth mentioning.
If you actually look at the resolution of MC-236907, you'd see it's a Won't Fix, mainly as it is a nearly-unfixable side effect of the implementation method.
Duplicate of MC-236907.