Tor Browser 4.5-alpha-1 and custom proxy settings

This bug does not affect Tor Browser 4.0.1

I use my own privoxy proxy settings and tor instance to browse the web.

Tor button -> preferences shows my settings as:

HTTP Proxy: 127.0.0.1 Port: 8118 SSL Proxy: 127.0.0.1 Port: 8118 SOCKS Host: 127.0.0.1 Port 9050

With those settings I get the error

Problem loading page
Unable to find the proxy server
Firefox is configured to use a proxy server that can't be found.

I can only browse if i remove the HTTP and SSL proxy settings and leave the SOCKS host settings on.

My configuration is correct and it works with tor browser 4.0.1 and versions before that.

Trac:
Username: cypherpunks-duplicate

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