Apparently this test doesn't fail in darcs-1 repos.
1 patch for repository http://darcs.net/screened:
patch 69eb75eef00d668184fee0c6a3ef80141a4f778a
Author: Ben Franksen <ben.franksen@online.de>
Date: Thu Jan 24 09:57:55 CET 2019
* enable test for issue436 for darcs-1 format