Fix disabling autoindent, closes #541

ftdetect/polyglot.vim

@@ -1777,10 +1777,7 @@ au BufNewFile,BufRead,StdinReadPost *
   \ | call polyglot#Heuristics() | endif
 
 
-if v:version < 700 || &cp
-  finish
-endif
-
+if !has_key(s:disabled_packages, 'helm')
 
   " Code below re-implements sleuth for vim-polyglot
   let g:loaded_sleuth = 1
@@ -1931,6 +1928,7 @@ augroup polyglot
     autocmd!
     autocmd FileType * call s:detect_indent()
   augroup END
+endif
 
 " restore Vi compatibility settings
 let &cpo = s:cpo_save