Put the summary of the bug you're having here

What I expected to happen was...:
The game let me do autocompletion with the command "execute if blocks all" 

What actually happened was...:
The game say there is a error that don't really exist

Steps to Reproduce:
1. try to use the command /execute if blocks -12 -60 -29 -12 -60 -29 -12 -60 -29 all run say hello
2. See how the game say there is an error at the "all" but the command still works

Note : The commands works if you use masked instead of "all"