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def append_features_cv(other) # So, the protocol here is that when including +self+ into +target+ # we also include all modules that are included into +self+. hierarchy = other.superclass_chain superclass_chain.reverse_each do |ancestor| if ancestor.instance_of? IncludedModule and not hierarchy.include? ancestor.module IncludedModule.new(ancestor.module).attach_to other end end IncludedModule.new(self).attach_to other end