Comment 3 for bug 1343081

The http:// is prepended when using either the "select text -> middle click" clipboard or the ctrl-c/ctrl-v clipboard. At least for me.

So I'd say this is not a bug, unless the reporter confirms there is some way to copy/paste the almost complete URL without http://. In fact, this new feature only removes the ability to copy only part of a URL starting from (e.g.) "www.", like the hostname part, because http:// appears to be always included when copying at least the host name.