uploads: fix exception with preprocessed uploads.

Fix exception when submitting an upload and an in-progress preprocessed
upload already exists. In this case we forgot to pass the upload params
when calling UploadService#delayed_start.

app/jobs/upload_service_delayed_start_job.rb

@@ -2,7 +2,7 @@ class UploadServiceDelayedStartJob < ApplicationJob
   queue_as :default
   queue_with_priority(-1)
 
-  def perform(uploader)
-    UploadService.delayed_start(uploader.id)
+  def perform(params, uploader)
+    UploadService.new(params).delayed_start(uploader.id)
   end
 end