Description of problem:
Playing with pulp-3 on Sat6.9-beta, I noticed a CV publish was pending on Actions::Pulp3::Repository::MultiCopyContent for a long time. So far so good, but the dynflow step status was changing from "waiting for Pulp to start the task" and "initiating Pulp task" and "waiting for Pulp to finish the task" quite randomly / quite confusingly to an end user.

While I understand the dynflow step consists of multiple pulp tasks that are sequentially executed with some delays in between, it is bizzare to watch the dynflow step status evolving in time like:

- "initiating Pulp task"
- "waiting for Pulp to start the task"
- "waiting for Pulp to finish the task"
- "waiting for Pulp to start the task"  - again? again starting _the_ task..? how many times yet..?

Could we add there some better text, i.e. 

"waiting for Pulp to [start|finish] the task add_and_remove (79a2dd3d)"

(but that sounds too long string..?)

Simply have there less confusing string that evolves over time, to show some progress being made.


Version-Release number of selected component (if applicable):
Sat6.9 beta
- tfm-rubygem-katello-3.18.1.3-1.el7sat.noarch


How reproducible:
100%


Steps to Reproduce:
1. Have a CV with several repos, some filters and "Solve Dependencies" enabled
2. Publish the CV
3. Regularly check the publish task details in dynflow


Actual results:
Actions::Pulp3::Repository::MultiCopyContent will take a longer time (that is ok), but the information "waiting on pulp to start/finish the task" is confusingly "evolving".


Expected results:
Some better-shaped text showing some progress (and no "regression") is made.


Additional info:
I guess the change should be here:

/opt/theforeman/tfm/root/usr/share/gems/gems/katello-3.18.1.3/app/lib/actions/pulp3/abstract_async_task.rb :

      def humanized_state
        case state
        when :running
          if self.combined_tasks.empty?
            _("initiating Pulp task")
          else
            _("checking Pulp task status")
          end
        when :suspended
          if combined_tasks.any?(&:started?)          ### <-- fine-tune this
            _("waiting for Pulp to finish the task")
          else
            _("waiting for Pulp to start the task")
          end
        else
          super
        end
      end