Fern buffer is broken when I invoke `<Plug>(fern-aciton-open:vsplit)`

[asmka]

Description

Fern buffer is broken when I invoke <Plug>(fern-aciton-open:vsplit) under specific confitions.

Environment

• Editor: Neovim 0.6.1
• OS: Ubuntu 20.04

Fern setting

vim.g['fern#disable_default_mappings'] = 1
vim.g['fern#disable_drawer_smart_quit'] = 1

function _G.FernInit()
  vim.cmd[[nmap <buffer> <CR> <Plug>(fern-action-open:edit)]]
  vim.cmd[[nmap <buffer> s <Plug>(fern-action-open:vsplit)]]
end

vim.cmd[[augroup FernEvents]]
vim.cmd[[  autocmd!]]
vim.cmd[[  autocmd FileType fern call v:lua.FernInit()]]
vim.cmd[[augroup END]]

Procedure

1. Boot Neovim
2. :Fern . -drawer -stay
3. :q
4. Open file with <CR> key (<Plug>(fern-action-open:edit))
5. :Fern . -drawer
6. Open file with s key (<Plug>(fern-action-open:vsplit))

[lambdalisue]

Reproduced with the procedure and minimal vimrc

if exists('+compatible') && &compatible
  set nocompatible
endif

" Disable Vim's native pack feature
set packpath=

" Clone https://github.com/lambdalisue/fern.vim in somewhere
" and specify that directory to the below
set runtimepath^=~/ghq/github.com/lambdalisue/fern.vim

filetype plugin indent on
syntax on
"----------------------------------------------------------------

nnoremap ; :
nnoremap : ;

let g:fern#disable_default_mappings = 1
let g:fern#disable_drawer_smart_quit = 1

function! s:my_fern() abort
  nmap <buffer> <CR> <Plug>(fern-action-open:edit)
  nmap <buffer> s <Plug>(fern-action-open:vsplit)
endfunction

augroup my_fern
  autocmd!
  autocmd FileType fern call s:my_fern()
augroup END

"----------------------------------------------------------------
echomsg "Custom minimal vimrc has loaded"

[lambdalisue]

Could you try #414? @asmka

[asmka]

@lambdalisue
I confirmed the problem was resolved by #414.
Thank you for your quick handling! 🙇‍♀️