* Implemented temporary work-around for net_buffer append_cloned(),
which doesn't seem to work right in combination with remove_header().
Or maybe I'm just misunderstood how it is supposed to be used. Anyway,
this fixed invalid data in the stream when buffers were split by a
read.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25070 a95241bf-73f2-0310-859d-f6bbb57e9c96