Merged r20738 from trunk to 4.0-stable (#34615).

git-svn-id: http://svn.redmine.org/redmine/branches/4.0-stable@20741 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/search_controller.rb

@@ -62,7 +62,7 @@ class SearchController < ApplicationController
       @object_types = @object_types.select {|o| User.current.allowed_to?("view_#{o}".to_sym, projects_to_search)}
     end
 
-    @scope = @object_types.select {|t| params[t]}
+    @scope = @object_types.select {|t| params[t].present?}
     @scope = @object_types if @scope.empty?
 
     fetcher = Redmine::Search::Fetcher.new(

test/functional/search_controller_test.rb

@@ -426,4 +426,19 @@ class SearchControllerTest < Redmine::ControllerTest
       assert_select 'dd span.highlight', :text => 'highlighted'
     end
   end
+
+  def test_search_should_exclude_empty_modules_params
+    @request.session[:user_id] = 1
+
+    get :index, params: {
+      q: "private",
+      scope: "all",
+      issues: "1",
+      projects: nil
+    }
+
+    assert_response :success
+
+    assert_select '#search-results dt.project', 0
+  end
 end