Test failures with ruby1.8.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@12019 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/helpers/queries_helper.rb

@@ -198,6 +198,7 @@ module QueriesHelper
       session[:query] = {:project_id => @query.project_id, :filters => @query.filters, :group_by => @query.group_by, :column_names => @query.column_names}
     else
       # retrieve from session
+      @query = nil
       @query = IssueQuery.find_by_id(session[:query][:id]) if session[:query][:id]
       @query ||= IssueQuery.new(:name => "_", :filters => session[:query][:filters], :group_by => session[:query][:group_by], :column_names => session[:query][:column_names])
       @query.project = @project