I've tried to create a project with single Subversion root.
The URL for project root in VCS looks like https://host/a/b/c/d/e. My Subversion account is granted access permission for that URL. But it is not granted access permission for any parent node from that URL, like https://host/a or https://host/a/b, etc.
When I've tried to Test Connection for specified URL the TeamCity have got a following response from the Subversion:
svn: PROPFIND of '/a': 403 Forbidden (https://host)
It looks like TeamCity attempts to connect to https://host/a resource first instead of the original URL I've provided during project creation (https://host/a/b/c/d/e).
OS: Windows NT/2000