fix: freeze when trying to type `hilbish` after an & or ;

[superpowers04]

Edit: it only happens if it's in the main line of the interpeter, If you use \ to escape a newline, it doesn't crash. It happens with hilbish and sudo from my testing. However it seems to instantly run sudo instead of just hanging

[superpowers04]

Invalid, it was somehow due to a script I had even though I wasn't running the script