[MC-260629] Mobs spawn on Mangrove Roots

Mobs spawn on Mangrove Roots. Bug appears to happen from Snapshot 1.19-pre2 onwards and got discovered on Philzas stream. Clip: https://clips.twitch.tv/DeliciousPeacefulGnatBrainSlug-ezmpDlkc38lsCYwd

Versions where found:

Snapshot 1.19-pre2

1.19

1.19.1

1.19.2

1.19.3

1.19.4 Pre-release 2

How to recreate: Create a superflat world with Mangrove Roots on top. Then set time to night.

Linked issues

Can confirm, in 1.19 pre release 2 mobs don't spawn on mangrove roots. However, in pre release 3 and above they will.

can confirm bug persists in 1.19.2 and 1.19.3

Can confirm Creepers and Skeletons have spawned within the range of the mangrove root blocks.

Can confirm, in superflat world, hostile mobs spawn on mangrove roots in versions 1.19.1 and later.

Thank you for your report!
We're tracking this issue in MC-260628, so this ticket is being resolved and linked as a duplicate.

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Update: The issue was caused because one file was deleted, making it so mobs spawn on mangrove roots.