Show unfeasible and unselected investments for finished budgets

We were filtering by winners investments for finished budget without
having in consideration other filters.
We want the default filter to be `winners` for finished budgets.

app/controllers/application_controller.rb

@@ -120,6 +120,8 @@ class ApplicationController < ActionController::Base
     def set_default_budget_filter
       if @budget.try(:balloting?) || @budget.try(:publishing_prices?)
         params[:filter] ||= "selected"
+      elsif @budget.try(:finished?)
+        params[:filter] ||= "winners"
       end
     end