*** a/app/models/issue.rb
--- b/app/models/issue.rb	
***************
*** 683,694 ****
          end
        end
        workflow_rules.each do |attr, rules|
<         next if rules.size < roles.size
          uniq_rules = rules.values.uniq
          if uniq_rules.size == 1
            result[attr] = uniq_rules.first
--- 683,704 ----
          end
        end
        workflow_rules.each do |attr, rules|
>         if rules.size < roles.size
>           result[attr] = 'required' if rules.values.include?('required')
>           next
         end
          uniq_rules = rules.values.uniq
          if uniq_rules.size == 1
            result[attr] = uniq_rules.first