Handle only HEAD kegs in to_latest_kegs
				
					
				
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				@ -324,7 +324,11 @@ module Homebrew
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        # Return keg if it is the only installed keg
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					        # Return keg if it is the only installed keg
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        return kegs if kegs.length == 1
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					        return kegs if kegs.length == 1
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        kegs.reject { |k| k.version.head? }.max_by(&:version)
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					        eligible_kegs = kegs.reject { |k| k.version.head? }
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					        # Use HEAD kegs if there are no stable kegs
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					        eligible_kegs = kegs if eligible_kegs.blank?
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					        eligible_kegs.max_by(&:version)
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      end
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					      end
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      def resolve_default_keg(name)
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					      def resolve_default_keg(name)
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@ -223,12 +223,14 @@ describe Homebrew::CLI::NamedArgs do
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      (HOMEBREW_CELLAR/"foo/1.0").mkpath
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					      (HOMEBREW_CELLAR/"foo/1.0").mkpath
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      (HOMEBREW_CELLAR/"foo/2.0").mkpath
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					      (HOMEBREW_CELLAR/"foo/2.0").mkpath
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      (HOMEBREW_CELLAR/"bar/1.0").mkpath
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					      (HOMEBREW_CELLAR/"bar/1.0").mkpath
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					      (HOMEBREW_CELLAR/"baz/HEAD-1").mkpath
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					      (HOMEBREW_CELLAR/"baz/HEAD-2").mkpath
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    end
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					    end
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    it "resolves the latest kegs with #resolve_latest_keg" do
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					    it "resolves the latest kegs with #resolve_latest_keg" do
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      latest_kegs = described_class.new("foo", "bar").to_latest_kegs
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					      latest_kegs = described_class.new("foo", "bar", "baz").to_latest_kegs
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      expect(latest_kegs.map(&:name)).to eq ["foo", "bar"]
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					      expect(latest_kegs.map(&:name)).to eq ["foo", "bar", "baz"]
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      expect(latest_kegs.map { |k| k.version.version.to_s }).to eq ["2.0", "1.0"]
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					      expect(latest_kegs.map { |k| k.version.version.to_s }).to eq ["2.0", "1.0", "HEAD-1"]
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    end
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					    end
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    it "when there are no matching kegs returns an empty array" do
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					    it "when there are no matching kegs returns an empty array" do
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