RTSP over TCP stopped working at v0.8.6e

[grav]

I'm using a h264 stream that requires rtsp over tcp to be turned on in order to show the picture decently.
Using RTSP over TCP works with <= 0.8.6d but doesn't work with 0.8.6e and 0.8.6f.
If I turn the option off, it does work on e and f, but the image gets 'muddy' (probably because it's using UDP?)

The stream works with Quicktime as well.

Doesn't this sound like a bug and not a problem with the stream?