Code Duplication    Length = 4-5 lines in 2 locations

app/controllers/users_controller.rb 2 locations

@@ 66-69 (lines=4) @@
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  # GET /signin
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  def signin
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    unless params[:old_twitter_user_id].nil? && session[:old_twitter_user_id].nil?
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      flash[:alert] = I18n.t("registration.deprecated.new_signin")
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      session[:old_twitter_user_id] = params[:old_twitter_user_id] unless params[:old_twitter_user_id].nil?
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    end
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    providers = configured_providers
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    if (!allow_user_signup? || !allow_greenlight_accounts?) && providers.count == 1 &&
@@ 99-103 (lines=5) @@
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      session[:invite_token] = params[:invite_token]
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    end
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    unless params[:old_twitter_user_id].nil? && session[:old_twitter_user_id].nil?
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      logout
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      flash.now[:alert] = I18n.t("registration.deprecated.new_signin")
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      session[:old_twitter_user_id] = params[:old_twitter_user_id] unless params[:old_twitter_user_id].nil?
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    end
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    @user = User.new
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  end