After testing this in Edgy with Simon Morgan's .vimrc, I've found that this has been fixed, probably because gvimrc no longer contains the commands noted in the description.
** Changed in: vim (Ubuntu) Status: Unconfirmed => Fix Released -- colorscheme get's sourced twice resulting in lost custom highlighting https://launchpad.net/bugs/17386 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs