[vcpkg.cmake] Variable scoping bug in vcpkg.cmake find_package override

[Neumann-A]

vcpkg/scripts/buildsystems/vcpkg.cmake

Lines 780 to 787 in c72cefb

	list(APPEND z_vcpkg_find_package_backup_vars "ARGS")
	if(DEFINED ARGS)
	set(z_vcpkg_find_package_backup_ARGS "${ARGS}")
	else()
	set(z_vcpkg_find_package_backup_ARGS)
	endif()
	set(ARGS "${z_vcpkg_find_package_package_name};${z_vcpkg_find_package_ARGN}")

does not correctly restore ARGS for chained/recursive find_package calls. It assumes function scope which doesn't work for find_package since it has to be a macro.

issue observed in #27279:
xcb-wrapper:

 _find_package(X11 COMPONENTS Xau Xdmcp)
_find_package(${ARGS})

The bug above magically transformed ARGS = EXPAT instead XCB for some (not further traced) reason ;)