Shrink NaN to canonical form #5129

Job	Run time
test-osx (check-py310-cover)	2m 20s
test-pyodide	2m 19s
test-osx (check-py310-nocover)	2m 19s
test (check-whole-repo-tests)	1s
test-osx (check-py310-niche)	2m 18s
test (lint)	1s
test-osx (check-py311-cover)	2m 22s
test-win (3.11, nocover)	2m 9s
test (check-format)	39s
test-win (3.11, cover+rest)	2m 5s
test (check-coverage)	2m 18s
test-win (3.11, x86, nocover)	2m 3s
test (check-conjecture-coverage)	2m 17s
test-win (3.11, x86, cover+rest)	2m 3s
test (check-py39-cover)	1s
test (check-pypy39-cover)	1s
test (check-py310-cover)	59s
test (check-py310-nocover)	1s
test (check-py310-niche)	1m 1s
test (check-pypy310-cover)	1s
test (check-py311-cover)	52s
test (check-py311-nocover)	53s
test (check-py311-niche)	48s
test (check-py312-cover)	1s
test (check-py312-nocover)	1s
test (check-py312-niche)	1s
test (check-py313-cover)	1s
test (check-py313-nocover)	1s
test (check-py313-niche)	1s
test (check-py313t-cover)	1s
test (check-py313t-nocover)	1s
test (check-py313t-niche)	1s
test (check-quality)	1s
test (check-py39-nose)	1s
test (check-py39-pytest46)	1s
test (check-py39-pytest54)	1s
test (check-pytest62)	1s
test (check-django51)	1m 21s
test (check-django50)	1m 20s
test (check-django42)	1m 18s
test (check-pandas22)	1m 3s
test (check-pandas21)	1m 1s
test (check-pandas20)	1m 8s
test (check-pandas15)	1m 8s
test (check-pandas14)	1m 9s
test (check-pandas13)	1m 1s
test (check-py39-oldestnumpy)	1s
test (check-numpy-nightly)	2m 17s
deploy	1s
	42m 53s

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