The particle component "minecraft:emitter_local_space" does not work.

How to reproduce:

1. Download official particle example pack: https://github.com/microsoft/minecraft-samples/tree/main/particles_examples_1.19
2. add pack to world
3. Spawn particle minecraft:example_entity_sparkle_box attatched to yourself.

It uses the local space with position and rotation set to true.
"minecraft:emitter_local_space": {
                "position": true,
                "rotation": true
                // "velocity" also doesn't work
            },

Weather you use an execute with particle command or the .spawnParticle() method from the scripting API on a dimension or player object does not change the result.

The particle emitter is not attatched to the entity. It just exists at the position where it was spawned.