cubicweb-worker #2076647 re-creation of worker does not play well with worker_ping [resolved]

worker_ping is not aware of the re-creation of worker which can happen in worker_pending_task. This defeats the whole process of recreating a worker since it will be marked as stale.

priorityimportant
typebug
done in0.1.3
load1.000
load left0.000
closed by#553c4cb0a3b7 properly handle dead workers (closes: #2076647)