Merge branch 'ds/mark-parents-uninteresting-optim'

Micro optimization in revision traversal code.

* ds/mark-parents-uninteresting-optim:
  revision.c: reduce object database queries

revision.c

@@ -113,7 +113,8 @@ void mark_parents_uninteresting(struct commit *commit)
 			 * it is popped next time around, we won't be trying
 			 * to parse it and get an error.
 			 */
-			if (!has_object_file(&commit->object.oid))
+			if (!commit->object.parsed &&
+			    !has_object_file(&commit->object.oid))
 				commit->object.parsed = 1;
 
 			if (commit->object.flags & UNINTERESTING)