probability vectors do not update upon cutoff increase

[ziofil]

Before posting a bug report

• I have searched exisisting GitHub issues to make sure the issue does not already exist.

Expected behavior

Length of probabilities equals cutoff

Actual behavior

the first cutoff sets the length once and for all

Reproduces how often

100%

System information

Python version:            3.9.16
Platform info:             Linux-5.15.49-linuxkit-aarch64-with-glibc2.31
Installation path:         /workspaces/MrMustard/mrmustard
Mr Mustard version:        0.5.0-dev
Numpy version:             1.23.5
Numba version:             0.56.4
Scipy version:             1.8.0
The Walrus version:        0.19.0
TensorFlow version:        2.10.1

Source code

from mrmustard.lab import *

fock_state = State(ket=Gaussian(1).ket())

print(len(fock_state.fock_probabilities([4])))   # prints 4
print(len(fock_state.fock_probabilities([8])))   # prints 4 again

Tracebacks

No response

Additional information

No response