ENT-11923: Fixed bug in double expansion of foreign list variables with namespaces

[larsewi]

Prior to fix, the added acceptance test had the following output:

R: /home/larsewi/ntech/cfengine/core/tests/acceptance/01_vars/01_basic/double_expansion_list_namespace.cf FAIL
R: $($(parent_namespace):$(parent_bundle).str) => EXPANDED
R: $($(parent_namespace):$(parent_bundle).lst) => $(bogus:check.lst)
R: $(default:check.lst)                        => EXPANDED

Ticket: ENT-11923 Changelog: Title Signed-off-by: Lars Erik Wik [email protected]