Add a parameter `cloneRelations` for `clone` to be able not to clone … #1155

Job	Run time
build-and-test (LCG_104/x86_64-el9-gcc13-opt)	9m 8s
build-and-test (dev4/x86_64-ubuntu2004-gcc9-opt)	8m 49s
build-and-test (LCG_104/x86_64-el9-clang16-opt)	7m 13s
	25m 10s

Provide feedback