Pumpkin, melon or hay bales patches don't turn grass blocks underneath into dirt blocks upon generation

I have created that world in  20w17a, but at coordinates -259 64.64 252 there's no village. 

Updated new seed and coordinates in 1.14+ villages.

Relates to MC-174164 and that one old large oak tree bug

Also relates to MC-167073

send debug screen on photo

Can confirm in 20w51a.

Can confirm in 21w03a.

Can confirm in 21w05a.

Can confirm in 21w06a.

Can confirm in 21w07a.

Can confirm in 1.16.5 and 21w08b.

Can confirm in 21w16a.

Can confirm in 1.17.

Can confirm in 1.17.1.

Can confirm in 1.18 Pre-release 5. I was able to reproduce this with several melon patches I found in the jungle biome.

Can confirm in 1.18.2 and 21w11a.

Version: 1.18.2

Seed: -6901966002481662265
Coordinates: /execute in minecraft:overworld run tp @s 1869 90 -1189 -781 26

Version: 21w11a

Seed: 5930246447940584321
Coordinates: /execute in minecraft:overworld run tp @s 8885 79 117 138 19

Can confirm in 1.19.

Version: 1.19

Seed: -953538683905638291
Coordinates: /execute in minecraft:overworld run tp @s 20651.70 95.00 -1040.59 -760.12 7.61

Can confirm in 1.19.2.

I cannot reproduce this in the latest version, 1.21. When finding these features, they properly convert the grass blocks beneath them into dirt.

Seed: -9052429000080258218

Tried another world and still cannot reproduce it:

The grass did take a long time to convert, but it did eventually do so. This can be observed using /tick sprint.

@@unknown, this is a world generation issue.

Based off of the original title and description alone, I was unaware. I had the impression this was to do with general conversion of the blocks at all. Regardless, thanks for letting me know and apologies for the faulty CR resolution.