Fix: errors sometimes occur in window selection.

Author: skanehira

autoload/vital/_fern/App/WindowSelector.vim

@@ -31,7 +31,7 @@ function! s:select(winnrs, ...) abort
   try
     let scs = options.select_chars
     let chars = map(
-          \ range(length + 1),
+          \ range(length),
           \ { _, v -> get(scs, v, string(v)) },
           \)
 

autoload/vital/fern.vital

@@ -1,5 +1,5 @@
 fern
-1f5becb7cfdb83ebe3af9228038d7714cf088726
+7fa44ef166bd9bb9ab6d2f9c3ec86c7b1d6b13ba
 
 App.Spinner
 Async.CancellationTokenSource