Allow to pass metadata with process config, non-cluster only

restream/restream.go

@@ -1220,8 +1220,13 @@ func (r *restream) UpdateProcess(id TaskID, config *app.Config) error {
 	// This would require a major version jump
 	//t.process.CreatedAt = task.process.CreatedAt
 	t.process.UpdatedAt = time.Now().Unix()
+
+	// Transfer the report history to the new process
 	task.parser.TransferReportHistory(t.parser)
 
+	// Transfer the metadata to the new process
+	t.metadata = task.metadata
+
 	r.tasks[tid] = t
 
 	// set filesystem cleanup rules