Fix bbox to xyz roundtrip computation #2491

Job	Run time
Lint and Unit test	3m 27s
Build aarch64-apple-darwin	4m 23s
Build debian-x86_64	5m 32s
Build and test docker images	5m 15s
Build x86_64-apple-darwin	16m 56s
Build x86_64-pc-windows-msvc	5m 26s
Build x86_64-unknown-linux-gnu	1m 34s
Test postgis:11-3.0-alpine sslmode=disable	3m 34s
Test postgis:14-3.3-alpine sslmode=disable	3m 45s
Test on macOS-latest	9m 45s
Test postgis:15-3.3 sslmode=require	3m 58s
Test on windows-latest	2m 12s
Test on ubuntu-latest	48s
Package	1m 4s
CI Finished	2s
	1h 7m 41s

Provide feedback