First player spawn does not include yaw direction

[vanquesh]

Expected behavior

When players first join on my server they are facing the wrong direction. They are in the right location, but facing the wrong direction. I have set the world spawn location including the direction every possible way, using commands and the Paper API via a custom plugin but nothing is working.

Observed/Actual behavior

When players first join they are in the right location but the yaw is 0 even though the world spawn location has yaw 180.

Steps/models to reproduce

Change world spawn location to have non-zero yaw and join with a new player. The new player will not be facing in the same direction as the spawn location, even though their x y z coodinates are correct.

Plugin and Datapack List

BlueMap, Core Protect, packetevents, ViaVersion, ViBackwards, Votifier, WorldEdit, and a custom plugin I made

Paper version

This server is running Paper version git-Paper-280 (MC: 1.20.2) (Implementing API version 1.20.2-R0.1-SNAPSHOT) (Git: 4675152)
You are 3 version(s) behind
Download the new version at: https://papermc.io/downloads/paper
Previous version: git-Paper-261 (MC: 1.20.2)

Other

No response

[vanquesh]

I updated to the latest version but it's still broken:

This server is running Paper version git-Paper-288 (MC: 1.20.2) (Implementing API version 1.20.2-R0.1-SNAPSHOT) (Git: aee3830)
You are running the latest version
Previous version: git-Paper-280 (MC: 1.20.2)

[Owen1212055]

Yaw is not saved with world spawn point. Intentional Minecraft behavior.

[TonytheMacaroni]

It is though? Specifically, the angle as mentioned here, and can be retrieved from Level#getSharedSpawnAngle/LevelData#getSpawnAngle?

[electronicboy]

The spawn command has an angle argument which lets you set that, so, it does exist as a thing

[electronicboy]

The way this is handled upstream looks kinda scuffed, theres generally a few areas where we get the levels spawn point but don't care about the angle, I'm guessing that this was a relatively recent addition that just wasn't handled by upstream?

[lynxplay]

Caused by the recent changes on our end. We are fudging spawn position, however that thing resets yaw and pitch.
Idk who to blame here, hopefully not me.

//edit, turns out it wasn't us, I just didn't catch it when we redid that logic.