[chef] Chef::Node::Attribute trying to call Hash methods on Array types

[Charles Duffy < >]

Howdy!

I'm trying to determine whether the following behavior constitutes a bug:

chef > node.default[:foo] = []

 => [] 

chef > node.set[:foo] << {:foo => "bar"}

 => {:foo=>"bar"} 

chef > node[:foo].each { |entry| puts entry[:foo] }

NoMethodError: undefined method `keys' for []:Array

        from /usr/lib64/ruby/gems/1.8/gems/chef-0.9.12/lib/chef/node/attribute.rb:250:in `keys'

        from /usr/lib64/ruby/gems/1.8/gems/chef-0.9.12/lib/chef/node/attribute.rb:248:in `each'

        from /usr/lib64/ruby/gems/1.8/gems/chef-0.9.12/lib/chef/node/attribute.rb:248:in `keys'

        from /usr/lib64/ruby/gems/1.8/gems/chef-0.9.12/lib/chef/node/attribute.rb:243:in `get_keys'

        from /usr/lib64/ruby/gems/1.8/gems/chef-0.9.12/lib/chef/node/attribute.rb:129:in `each'

        from (irb):22

        from :0

This happens because Chef::Node::Attribute's each instance calls get_keys, which in turn calls keys, which isn't available for an array.

Is there an idiom I should be using which would avoid this issue?