Workaround for autocmd brain damage.
Workaround for autocmd brain damage.

Vim doesn't call autocmd commands in a predictible order, which can lead
to missing filetype when jumping to a new file with `lrewind`.

wezhang/vim-setup,wezhang/vim-setup,wezhang/vim-setup,wezhang/vim-setup,wezhang/vim-setup,wezhang/vim-setup