Add missing incref. Closes https://github.com/cython/cython/pull/4183 Closes https://github.com/cython/cython/issues/4182
Add missing incref.
Closes https://github.com/cython/cython/pull/4183
Closes https://github.com/cython/cython/issues/4182

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