Players not spawning at world spawn if spawnRadius is 0

[MATRIX-feather]

Expected behavior

When spawnRadius is set to 0, players on the server will spawn at [0,0] on their first join or respawn if they don't have a spawnpoint set.

Observed/Actual behavior

Players always spawn at [0,0] no matter what the world spawn is.

Steps/models to reproduce

1. Set spawnRadius by /gamerule spawnRadius 0
2. Set a custom world spawn by /setworldspawn
3. Get killed or join with a new account
4. You still standing at [0,0] instead of the custom world spawn

Plugin and Datapack List

No plugins.

Datapacks:

-rw-r--r-- 1 Kinopico Kinopico 908K Feb 26 23:00  AC_TheAncientCityOverhaul_v1_6.zip
-rw-r--r-- 1 Kinopico Kinopico 1.4M Apr 27 18:31  CITY_better-end-city-vanilla.zip
-rw-r--r-- 1 Kinopico Kinopico 6.4M Feb 26 23:06 'Dungeons and Taverns v3.1.1.zip'
-rw-r--r-- 1 Kinopico Kinopico 323K Feb 26 23:05 'HopoBetterRuinedPortals-[1.19-1.19.3]-1.3.3b.zip'
-rw-r--r-- 1 Kinopico Kinopico  88K Apr 27 18:42  NETHER_hearths-v1.0.0-pf15.zip
-rw-r--r-- 1 Kinopico Kinopico 813K Apr 27 19:51  S_thebastionoverhaul-v1-0.zip
-rw-r--r-- 1 Kinopico Kinopico 1.2M Feb 26 23:04  Structory_1.20.2_v1.3.4.zip
-rw-r--r-- 1 Kinopico Kinopico 3.2M Feb 26 23:05 '[DatapackVer.]HopoBetterMineshaft-[1.20.2-1.20.4]-1.2.0.zip'
-rw-r--r-- 1 Kinopico Kinopico 616K Feb 26 23:05 '[DatapackVer.]HopoBetterUnderwaterRuins-[1.20.2-1.20.4]-1.1.5.zip'
drwxr-xr-x 1 Kinopico Kinopico    0 Apr 27 18:30  bukkit
-rw-r--r-- 1 Kinopico Kinopico 153K Feb 26 22:58  explorify-v1.3.0-pf15-18.zip
drwxr-xr-x 1 Kinopico Kinopico    0 Apr 27 18:30  fomwt
-rw-r--r-- 1 Kinopico Kinopico 119K May  7 20:19  tectonic-datapack-v2.2.2.zip

Folia version

> ver
[13:48:25 INFO]: Checking version, please wait...
[13:48:26 INFO]: This server is running Folia version git-Folia-"ec6b172" (MC: 1.20.4) (Implementing API version 1.20.4-R0.1-SNAPSHOT) (Git: ec6b172)
You are running the latest version
Previous version: git-Luminol-"3ee5f92" (MC: 1.20.4)

Other

This behavior doesn't seem to exist on Paper

[Strokkur424]

I can confirm this to still be a bug in the latest version of Folia (1.20.6 Patch 5).
Here is a quick recording I did regarding that: https://youtu.be/aquvqg6Yeyc

EDIT:
Plugins: LuckPerms + Spark
Datapacks: None

Otherwise fresh download. Not played on the server