I found the answer in this article: http://wp.evx.me/evolonix/2011/11/27/svn_error_e220000/
Theres is an escape hatch that allows you to trade security features for speed. If you do not use any authorization for each directory (i.e. Do not use mod_authz_svn or a similar module), you can disable path checking. In the httpd.conf or virtual host file, use the SVNPathAuthz directive:
Disabling path verification in general
<Location /repos> DAV svn SVNParentPath /usr/local/svn SVNPathAuthz off </Location>
The default directive is SVNPathAuthz "on". When set to โoff,โ all path-based authorization checks are disabled; mod_dav_svn stops referencing authorization checks for each path found.
Andrey Paslavsky
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