Dear James McCoy, while it's perfectly ok that upstream changed it's configuration I consider it a bug that this configuration can't be overriden systemwide - at least it seems the preferred way of creating a /etc/vim/vimrc.local file can't override the set mouse=a setting (currently I modified the /usr/share/vim/vim80/defaults.vim file but as this file will be overwritten when the package is upgraded I consider this a workaround, not a solution). >From my prelimiary analysis it seems the problem is that /usr/share/vim/vim80/defaults.vim gets included multiple times which it definitly shouldn't. As it seems only possible to override this problem on a per user base I would consider this definitly a bug...
Kind regards Harald Jenny
