[MC-118996] Grass grows underwater

Grass now spreads to dirt blocks which are submerged underwater, and grass underwater does not revert back to dirt.

To reproduce:
Place grass, pour water over it.
Place dirt, pour water over it, place grass nearby and watch it spread.

Attachments

This issue has been closed as invalid.

Your game, launcher or server is modified.
If you can reproduce the issue in a vanilla environment, please recreate the issue.

Any non-standard client/server/launcher build needs to be taken up with the appropriate team, not Mojang.
Any plugin issues need to be addressed to the creator of the plugin or resource pack.
If you have problems on large servers, such as The Hive and Hypixel, please contact them first as they run modified server software.

Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki