'includes' is being replaced by 'a hash including' in strings

[RGillett]

describe 'RulesController' do
  it 'always returns the list of general rules' do
    get "/partner_setup/rules/1/general_rules"
    rules = JSON.parse(response.body)

    expect(rules).to match(a_hash_including({
      'title' => 'Test',
      'description' => 'a link will not be included in the emails'
    }))

  end

end

Running the above test gives this error:

expected [{"id"=>"1", "title"=>"Test", "description"=>"a link will not be included in the emails"}] to match (a hash including {"title" => "Test", "description" => "a link will not be a hash includingd in the emails"})
Diff:
@@ -1,2 +1,4 @@
-(a hash including {"title" => "Test", "description" => "a link will not be a hash includingd in the emails"})
+[{"id"=>"1",

• "title"=>"Test",
• "description"=>"a link will not be included in the emails"}]

[JonRowe]

Duplicate (and wrong repo for) rspec/rspec-expectations#1116