mie: ir: walk: walk is no longer recursive by default

mie/ir/walk.c

@@ -293,7 +293,9 @@ static enum mie_status step(struct mie_walker *walker)
 		return MIE_ERR_NO_DATA;
 	}
 
-	schedule_children(walker, cur);
+	if (walker->w_flags & MIE_WALKER_F_RECURSIVE || cur->i_depth == 0) {
+		schedule_children(walker, cur);
+	}
 
 	b_queue_delete(&walker->w_sched, &cur->i_entry);
 	free(cur);