Comment 2 for bug 156744

This fails for the repository that I want to get an import from at:
svn://svn.connexia.com/BluemapiaWinClient
Because the root:
svn://svn.connexia.com
requires authentication for reads, presumably because there are other non-public projects on it.
However, this repository does provide a root via svn info, so perhaps as a partial fix you can just check if the repository root information is provided and if not try walking up the URL? That would at least restrict the effects of the bug to old repositories with complex structures or restricted roots.