When running the command "/player (name) attack", the player reaches further than it should (in survival at least, and yes i tested this with a survival mode fake player). the command will make a player/fake player attack an entity further than is possible for a normal player (from my testing it is about 0.5 to 1 block further).

Steps to reproduce:

1. place a mob or entity or spawn a fake player in survival mode or adventure mode
2. Go to survival mode.
3. move yourself to a spot where the mob/entity/fake player is just barely out of normal survival mode reach
4. look at the mob/entity/fake player
5. attempt to normally attack it without moving. you should find that nothing happens because it is out of normal reach
6. run "/player (name) attack" on yourself
7. observe that you successfully hit the mob/entity/fake player even though it is just out of normal reach

And yes this also happens with "/player (name) attack" run on a fake player as well, it was just easier to demonstrate with myself.

Minecraft Version: Release 1.20.4
Fabric Loader Version: 0.16.0
Carpet Version: 1.4.128
Allocated RAM: 5632 MB
Using the modrinth app to run minecraft

Video (sorry for no audio i guess snipping tool didn't record the audio):
https://github.com/user-attachments/assets/f6901dda-004a-40ac-bbfc-ffa9703de167