Tag minecraft:tick doesn't work when joining a world

When joining a world, Tag minecraft:tick don't work unless reloading.

(maybe other tags will also appear the problem but I don't have time to test them)

To reproduce

1. Create a new world, and add a data pack with a test function (just include a say command) to the world, and add the minecraft:tick tag to the function.
2. Run the reload command and make sure the function can be executed correctly (spamming).
3. Quit to title and rejoin the world.
4. Wait for the spam. Ouch... nothing happening?
5. Run the reload command (or disable the data pack and enable again), the spam will back now.