`:AirlineRefresh` not work correctly
`:AirlineRefresh` not work correctly

If active buffer is modified, `:AirlineRefresh` apply `normal` highlight
instead of `normal_modified` highlight.

No particular config is requiered to reproduce this bug.

I see this bug with option `g:airline_skip_empty_sections` set.
Add any modification at the active buffer return to normal mode,
**do not save** and wait a few seconds, you can see highlight change to
normal but file is modified.

Without option `g:airline_skip_empty_sections`, add any modification at
the active buffer return to normal mode and type `:AirlineRefresh` you
can see change to bad highlight .

dalguji/vim-airline,HarmtH/vim-airline,bling/vim-airline,rchicoli/vim-airline,tschundler/dotfiles,tschundler/dotfiles,unphased/vim-airline,yzhou61/vim-airline,tschundler/dotfiles,chrisbra/vim-airline