Assigning None to memoryviews is allowed, re-enable it.
Assigning None to memoryviews is allowed, re-enable it.

da-woods/cython,cython/cython,scoder/cython,cython/cython,cython/cython,scoder/cython,cython/cython,scoder/cython,da-woods/cython,scoder/cython,da-woods/cython,da-woods/cython