It's also documented [1]. https://svnbook.red-bean.com/en/1.7/svn.advanced.l10n.html
Thanks. I failed to find that. Now I understand. I certainly don't expect such fundamental behavior to change, but I can't help but respond a little. Just ignore me :). All the world is not Unix ... the problem of cross-platform compatibility. Of course. Precisely the reason why storing filenames as bytes would be more portable than forcing any particular encoding, in principle, seems to me. So assuming you can do some magic with file name encoding and expect Subversion to deal with it is, let's say, using the wrong tool The situation is precisely the opposite: I'm not doing any magic whatsoever. Subversion is forcing its own preferred encoding "magic" (i.e., UTF-8) on me. Ah well. Life goes on. Thanks much for answering my question, and all the related info. --best, karl.