Fix prefetched state of regenerated tasks

src/core/jobs.c

@@ -485,6 +485,7 @@ void _starpu_handle_job_termination(struct _starpu_job *j)
 		 * also the callback were executed. */
 		j->terminated = 2;
 	}
+	task->prefetched = 0;
 	STARPU_PTHREAD_COND_BROADCAST(&j->sync_cond);
 	STARPU_AYU_REMOVETASK(j->job_id);
 	STARPU_PTHREAD_MUTEX_UNLOCK(&j->sync_mutex);

src/core/task.c

@@ -740,7 +740,6 @@ static int _starpu_task_submit_head(struct starpu_task *task)
 		task->status = STARPU_TASK_INVALID;
 	else
 		STARPU_ASSERT(task->status == STARPU_TASK_INVALID);
-	task->prefetched = 0;
 
 	if (j->internal)
 	{