Airline ignores 'modified' icon

[beyondmarc]

I was trying to set an icon to be shown next to the file name when it's modified. After all, there's a modified airline_symbol. However, that symbol is never used, since airline uses the default vim '%m' statusline item when setting the file name or path.

The lines in question are in airline/init.vim 191 to 196:

if get(g:, 'airline_section_c_only_filename',0)
    call airline#parts#define_raw('file', '%t%m')
  else
    call airline#parts#define_raw('file', airline#formatter#short_path#format('%f%m'))
  endif
  call airline#parts#define_raw('path', '%F%m')

environment

• vim: latest
• vim-airline: latest
• OS: windows

actual behavior

Airline always shows the default [+] when a file is modified.

expected behavior

I would expect Airline to show whatever symbol is defined in the symbol table.

[chrisbra]

Yes, the %m is the default modified label added by Vim. I suppose you could define your own part using a custom label. But currently this is not enabled in vim-airline.