QNetworkReply with error never finishes with a SOCKS-proxy set.

When a QNetworkReply which was requested with a proxy has an error, the finished-signal is never emitted and it just appears to "hang".

Attached is the http example minimally modified to use a SOCKS proxy on localhost:9999.

I use SSH for the proxy:

ssh -N -D9999 my-server.org

An existing URL works as expected. When trying to download an unexistent URL (http://foo.bar), the reply never finishes.

Without the proxy, an error gets shown as expected.