noindex tags are rendered incorrectly

[rnitta]

<% set_meta_tags noindex: 'robots', nofollow: 'googlebot' %>
<%= display_meta_tags%>

and it's expected output will be

<meta name="robots" content="noindex">
<meta name="googlebot" content="nofollow">

but now actually the output is

<meta name="robots" content="noindex, nofollow">

with more research,
I found this causes only if noindex name is 'robots' or anything other than String object.
so then,

<% set_meta_tags noindex: 'googlebot', nofollow: 'hogehoge' %>
<%= display_meta_tags%>

doesn't matter:

<meta name="googlebot" content="noindex">
<meta name="hogehoge" content="nofollow">

I think this is a bug of these code:

meta-tags/lib/meta_tags/meta_tags_collection.rb

Lines 145 to 152 in c3addee

	def extract_noindex
	noindex_name, noindex_value = extract_noindex_attribute(:noindex)
	index_name, index_value = extract_noindex_attribute(:index)
	nofollow_name, nofollow_value = extract_noindex_attribute(:nofollow)
	follow_name, follow_value = extract_noindex_attribute(:follow)
	noindex_attributes = if noindex_name == follow_name && (noindex_value || follow_value)

meta-tags/lib/meta_tags/meta_tags_collection.rb

Lines 198 to 204 in c3addee

	def extract_noindex_attribute(name)
	noindex = extract(name)
	noindex_name = noindex.kind_of?(String) ? noindex : 'robots'
	noindex_value = noindex ? name.to_s : nil
	[ noindex_name, noindex_value ]
	end

especially in

meta-tags/lib/meta_tags/meta_tags_collection.rb

Line 200 in c3addee

noindex_name = noindex.kind_of?(String) ? noindex : 'robots'

[kpumuk]

Thank you for the report, the issue should be resolved in master, and in the version 2.12.0 when it is released.