Only single login attempt possible

[cyberduck]

5792be4 created the issue

When I try to login with WebDAV, if I receive a 401 Unauthorized response from the server, I cannot login afterwards. Usually, WebDAV tries an anonymous login first, which always triggers this error, but if I type username@domain and enter my password correct the first time, everything works fine. What happens is the following:

• 1. I try to open a connection with my server.
• 2. The server logs a HEAD request with username (anonymous, for example) and replies 401.
• 3. I change the username and/or password.
• 4. The server logs a HEAD request without username and replies 401.
• 5. I can repeat with step 3, but only restarting Cyberduck gets me back to step 1.

So it seems that at subsequent requests, the webserver does not receive the credentials correctly.
The webserver is Apache 2.2.22 running on Debian. If you need more information, please let me know.

[cyberduck]

@dkocher commented

Added failing test in 1fd7379.

[cyberduck]

@dkocher commented

In 7b3a2ae.