Sometimes spawnpoint will spawn players above trees

We do not have enough information to reproduce this issue.

Please provide the following information about the world you are playing in as text. Attaching a screenshot showing them is not enough.

• World Type:

  • "Default" if you have not chosen one when creating the world.

  • For "Superflat": Additionally provide the generation preset.

  • For "Buffet": Additionally provide the generator type and biome you have selected.

• Additional generation settings (in case you changed them): E.g. "Generate Structures", "Bonus Chest", ...

• Seed: Can be obtained by using the /seed command and clicking on the message in chat

• Coordinates: Can be copied to clipboard by pressing F3 + C

_{This issue is being temporarily closed as Awaiting Response. Once the requested information has been delivered, the report will be reopened automatically.}

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Default world type. Seed is -1854418717
My screenshot was from pre-1. I was able to repeat on the 2nd start in pre-6 in a dark_forest.

Successfully reproduced on the second attempt.

What do "made changes" and "made transition" mean? Are those developer-speak for some facet of the coding process?

No, that's JIRA speak for "the report was modified" and "the status/resolution of the report was updated".

Caused by MC-243079; reverted 1.13 - 1.17 worldspawn behavior to 1.12 behavior.

To clarify the mechanics: 1.12 respawn picked the highest block to spawn the player, but ignored leaves unless there was a solid block beneath. Since 1.18 no longer respects y value for /setworldspawn (more info in MC-245811), the behavior was reverted to 1.12 but without the check for a canopy. Reproduce: /setworldspawn beneath leaves and /gamerule spawnRadius 0 (for convivence) then /kill. You end up on top.

If they reopened and fixed MC-243079, then this bug would be resolved as well.

can confirm in 1.19 Pre-release 1

Can confirm in 1.19.3 and 23w03a

A simple way to reproduce this bug is to repeatedly generating a bunch of single biome dark oak forest worlds, since most of the terrain in that biome is covered by leaves.

Considering MC-243079 is about a command and this is about the world's default spawn I'm not sure a 'caused by' relation makes sense, but the two are definitely closely related behavior wise. Execution is just different.