Fix bbox to xyz roundtrip computation #2461

Job	Run time
Build and test docker images	4m 28s
Build aarch64-apple-darwin	3m 7s
Build debian-x86_64	5m 28s
Build x86_64-apple-darwin	5m 34s
Build x86_64-pc-windows-msvc	3m 37s
Build x86_64-unknown-linux-gnu	1m 37s
Lint and Unit test	1m 34s
Test on macOS-latest	57s
Test on windows-latest	41s
Test postgis:11-3.0-alpine sslmode=disable	43s
Test on ubuntu-latest	44s
Test postgis:14-3.3-alpine sslmode=disable	38s
Test postgis:15-3.3 sslmode=require	43s
Package	0s
CI Finished	0s
	29m 51s

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