If budget is in balloting phase and there are voted investments, it
was not possible to print budgets investments because the ballot was
never being loaded in the controller and therefore an error was raised
when rendering the view.
Failure/Error: <% if ballot.has_investment?(investment) %>
ActionView::Template::Error:
undefined method `has_investment?' for nil:NilClass
app/views/budgets/investments/_ballot.html.erb:3
app/views/budgets/investments/_investment.html.erb:88
app/views/custom/management/budgets/investments/print.html.erb:26