Chunks don't load while the player is being teleported

While the player is being teleported using, for example, a repeating command block, chunks don’t load.

Steps to reproduce:

1. Set up a repeating command block with the following command. Note that adding the “p” tag isn’t strictly necessary to recreate the bug, I’ve added it so it’s easy to enable and disable the command.

   execute as @p[tag=p] at @s run tp @s ~ ~ ~1

2. Give yourself the “p” tag:

   /tag @s add p

3. You’ll now get teleported. Observe that chunks don’t load.

4. Once finished, remove the “p” tag to stop getting teleported:

   /tag @s remove p

5. Observe that the chunks load again when the teleporting stops.

What I expected:

I expected the chunks to load. They used to in 1.21.8

What actually happened:

The chunks didn’t load