Comment 10 for bug 541040

This is one of the reasons why I created a Soprano branch in which I implemented my own local socket communication without Qt. The only problem is that it is Linux-only (or unix-socket-having-systems-only) and, thus, I cannot make it the official branch yet.
But I will probably announce it as a patch for Soprano 2.4.x for linux distributors to apply to their copy to make it all thread-safe.