FIX: create a single inverted polygon when no exteriors found #1635

Job	Run time
build (ubuntu-latest, 3.10, true)	2m 7s
build (ubuntu-latest, 3.11, true)	2m 18s
build (ubuntu-latest, 3.12, true)	3m 53s
build (ubuntu-latest, 3.13-dev, true)	2m 49s
build (macos-latest, 3.10, true)	2m 0s
build (macos-latest, 3.11, true)	2m 10s
build (macos-latest, 3.12, true)	1m 57s
build (macos-latest, 3.13-dev, true)	1m 57s
build (windows-latest, 3.10, true)	3m 58s
build (windows-latest, 3.11, true)	3m 13s
build (windows-latest, 3.12, true)	4m 11s
build (windows-latest, 3.13-dev, true)	4m 23s
build (ubuntu-latest, 3.11, false)	1m 12s
Create issue on failure	0s
	36m 8s

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