UnBundle duplicates vim runtime path

[mightyguava]

If I use UnBundle at all, my vim runtime path gets duplicated, so that when I do echom &rtp, 2 of every path shows up. This causes an issue with globpath(), where it returns 2 of the same file every time, and seems to break vim-go's snippets.

vim-go snippets has a vim-go/ftplugin/go/snippets.vim which contains the line

exec 'NeoSnippetSource' globpath(&rtp, 'gosnippets/snippets/go.snip')

So it's trying to add, for me, as a single file

"/Users/yunchi/.vim/bundle/vim-go/gosnippets/snippets/go.snip^@/Users/yunchi/.vim/bundle/vim-go/gosnippets/snippets/go.snip"

I'm not very good with vim, so have no idea where on this path is the actual bug, but I think it lies with either UnBundle which is duplicating the path? Don't really understand how that happens, but it might have to do with the vundle#config#init call. There's a relevant issue here VundleVim/Vundle.vim#539... I think

Help would be much appreciated.