redirect fails when NTLM authentication is used for proxy

HI all,
    During redirect time, the auth has to be cleared as the below issues says,
http://issues.apache.org/jira/browse/HTTPCLIENT-211
but, it does it only for the hosts NTLM authentication,
But, when we have NTLM at proxy, redirect fails.

Should we have it cleared for proxy also, right? please let me know otherwise, please let me know.

Thanks,
Raj