Tests/RunCMake/VSSolution/Override3.cmake - third_party/github.com/Kitware/CMake - Git at Google

 set_property(DIRECTORY PROPERTY VS_GLOBAL_SECTION_POST_ExtensibilityGlobals
   Key1=Value1
   SolutionGuid={custom-guid}
   )
	set_property(DIRECTORY PROPERTY VS_GLOBAL_SECTION_POST_ExtensibilityGlobals
	Key1=Value1
	SolutionGuid={custom-guid}
	)