For whatever reason tabs were used as indentation

plugin/jedi.vim

@@ -15,10 +15,10 @@ if get(g:, 'jedi#auto_vim_configuration', 1)
     " jedi-vim really needs, otherwise jedi-vim cannot start.
     filetype plugin on
 
-	augroup jedi_pyi
-	  au!
-	  autocmd BufNewFile,BufRead *.pyi  set filetype=python
-	augroup END
+    augroup jedi_pyi
+      au!
+      autocmd BufNewFile,BufRead *.pyi  set filetype=python
+    augroup END
 
     " Change completeopt, but only if it was not set already.
     " This gets done on VimEnter, since otherwise Vim fails to restore the