tests

Minor Tweaks to PolygonalRegion #586

Job	Run time
test (3.8, ubuntu-latest, test)	6m 22s
test (3.8, ubuntu-latest, test-full)	8m 5s
test (3.8, windows-latest, test)	7m 38s
test (3.8, windows-latest, test-full)	10m 49s
test (3.9, ubuntu-latest, test)	6m 41s
test (3.9, ubuntu-latest, test-full)	8m 33s
test (3.9, windows-latest, test)	8m 3s
test (3.9, windows-latest, test-full)	10m 41s
test (3.10, ubuntu-latest, test)	6m 36s
test (3.10, ubuntu-latest, test-full)	8m 37s
test (3.10, windows-latest, test)	8m 24s
test (3.10, windows-latest, test-full)	10m 9s
test (3.11, ubuntu-latest, test)	6m 7s
test (3.11, ubuntu-latest, test-full)	8m 22s
test (3.11, windows-latest, test)	8m 53s
test (3.11, windows-latest, test-full)	10m 17s
test (3.12, ubuntu-latest, test)	6m 28s
test (3.12, ubuntu-latest, test-full)	17m 5s
test (3.12, windows-latest, test)	8m 40s
test (3.12, windows-latest, test-full)	15m 26s
check-format / check	13s
	3h 2m 9s

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