E1312: Not allowed to change the window layout in this autocmd

[mb6ockatf]

Environment

• Operating System: manjaro linux (kernel 5.15.102-1-MANJARO) on xfce 4.18
• Vim/Neovim version :version:

VIM 9.0 (2022 Jun 28, compiled Feb 11 2023 18:31:20)
Included patches: 1-1302
Compiled by Arch Linux

• NERDTree version, found on first line of quickhelp ?: 6.10.16
• minimal .vimrc file that will reproduce the issue.

set nocompatible
set nu
set nobomb
set wrap
set linebreak
set textwidth=80
set colorcolumn=80
set backspace=2
set autoindent
set history=50
set ruler
set showcmd
set wildmenu
set ttimeout
set ttimeoutlen=100
set display=truncate

" return '[\s]' if trailing whitespace is detected; return '' otherwise
function StatuslineTrailingSpaceWarning()
	if !exists("b:statusline_trailing_space_warning")
		if !&modifiable
			let b:statusline_trailing_space_warning = ''
			return b:statusline_trailing_space_warning
		endif
		if search('\s\+$', 'nw') != 0
			let b:statusline_trailing_space_warning = '[\s]'
		else
			let b:statusline_trailing_space_warning = ''
		endif
	endif
	return b:statusline_trailing_space_warning
endfunction

" return the syntax highlight group under the cursor ''
function StatuslineCurrentHighlight()
	let name = synIDattr(synID(line('.'),col('.'),1),'name')
	if name == ''
		return ''
	else
		return '[' . name . ']'
	endif
endfunction

" return '[&et]' if &et is set wrong highlight group under the cursor ''
function StatuslineCurrentHightlight()
	let name = synIDattr(synID(line('.'),col('.'),1),'name')
	if name == ''
		return ''
	else
		return '[' . name . ']'
	endif
endfunction
" return '[mixed-indenting]' if spaces and tabs are used to indent
" return an empty string if everything is fine
function StatuslineTabWarning()
	if !exists("b:statusline_tab_warning")
		let b:statusline_tab_warning = ""
		if !&modifiable
			return b:statusline_tab_warning
		endif
		let tabs = search('^\t', 'nw') != 0
"		" find spaces that aren't used as alignment in the first indent
"		" column
		let spaces = search('^ \{' . &ts . ',}[^\t]', 'nw') != 0
		if tabs && spaces
			b:statusline_tab_warning = '[mixed-indenting]'
		elseif (spaces && !&et) || (tabs && &et)
			b:statusline_tab_warning = '[%et]'
		endif
	endif
	return b:statusline_tab_warning
endfunction

" return a warning for "long lines" where "long" is either &textwidth or 80 (if
" no &textwidth is set)
" return '' if no long lines
" return '[#x,my,$z]' if long lines are found, were x is the number of long
" lines, y is the median length of the long lines and z is the length of the
" longest line
function StatuslineLongLineWarning()
	if !exists("b:statusline_long_line_warning")
		if !&modifiable
			let b:statusline_long_line_warning = ''
			return b:statusline_long_line_warning
		endif
		let long_line_lens = s:LongLines()
		if len(long_line_lens) > 0
			let b:statusline_long_line_warning = "[" .
					\ '#' . len(long_line_lens) . "," .
					\ 'm' . s:Median(long_line_lens) . "," .
					\ '$' . max(long_line_lens) . "]"
		else
			let b:statusline_long_line_warning = ""
		endif
	endif
	return b:statusline_long_line_warning
endfunction

" return a list containing the lengths of the long lines in this buffer
function s:LongLines()
	let threshold = (&tw ? &tw : 80)
	let spaces = repeat(" ", &ts)
	let long_line_lens = []
	let i = 1
	while i <= line("$")
		let len = strlen(substitute(getline(i), '\t', spaces, 'g'))
		if len > threshold
			call add(long_line_lens, len)
		endif
		let i += 1
	endwhile
	return long_line_lens
endfunction

function s:Median(nums)  " find the median of the given array of numbers
	let nums = sort(a:nums)
	let l = len(nums)
	if l % 2 == 1
		let i = (l - 1) / 2
		return nums[i]
	else
		return nums[l / 2] + nums[(l / 2) - 1] / 2
	endif
endfunction

set cmdheight=1
set laststatus=2
set statusline=%-03.f

set statusline+=%#warningmsg#  " display a warning if fileformat isn't unix
set statusline+=%{&ff!='unix'?'['.&ff.']':''}
set statusline+=%*

set statusline+=%#warningmsg#  " display a warning if file encoding isn't utf-8
set statusline+=%{(&fenc!='utf-8'&&&fenc!='')?'['.&fenc.']':''}
set statusline+=%*

set statusline+=%h             " help file flag
set statusline+=%y             " fivarype
set statusline+=%r             " read only flag
set statusline+=%m             " modified flag
" let fugitive_statisline_string = fugitive#statusline()
" set statusline+=fugitive_statisline_string

" display a warning if &et is wrong, or we have mixed-indenting
" set statusline+=%#error#
" set statusline+=%{StatuslineTabWarning()}
" set statusline+=%*

set statusline+=%{StatuslineTrailingSpaceWarning()}
set statusline+=%{StatuslineLongLineWarning()}

set statusline+=%#warningmsg#
set statusline+=%#error#        " display a warning if &paste is set
set statusline+=%{&paste?'[paste]':''}
set statusline+=%*

set statusline+=%=                                    " left/right separator
set statusline+=%{StatuslineCurrentHighlight()}\ \  " current hightlight
set statusline+=%c,                                   " cursor column
set statusline+=%l/%L                                 " cursor line/total lines
set statusline+=\ %P                                  " percent through file

" recalculate the trailing whitespace warning when idle, and after saving
autocmd cursorhold,bufwritepost * unlet! b:statusline_trailing_space_warning

" recalculate the long line warning when idle and after saving
autocmd cursorhold,bufwritepost * unlet! b:statusline_long_line_warning

noremap <Up> <Nop>
noremap <Down> <Nop>
noremap <Left> <Nop>
noremap <Right> <Nop>
vnoremap <Up> <Nop>
vnoremap <Down> <Nop>
vnoremap <Left> <Nop>
vnoremap <Right> <Nop>
inoremap <Up> <Nop>
inoremap <Down> <Nop>
inoremap <Left> <Nop>
inoremap <Right> <Nop>
inoremap <S-Left> <Nop>
map <F7> :tabp<CR>
map <F8> :tabn<CR>
map <F9> :tabnew<CR>
set mouse-=a
filetype detect
if &filetype == "python"
	set tabstop=4
	set expandtab
	set shiftwidth=4
elseif &filetype == "vim"
	set tabstop=4
	set shiftwidth=4
elseif &filetype == "html" || &filetype == "css"
	set tabstop=2
	set shiftwidth=2
	set nolinebreak
	set colorcolumn=140
	set textwidth=140
	set wrap
endif
colorscheme default
call plug#begin()
Plug 'morhetz/gruvbox'
Plug 'mb6ockatf/citify'
Plug 'lervag/vimtex'
Plug 'sirver/ultisnips'
Plug 'preservim/nerdtree'
Plug 'dense-analysis/ale'
call plug#end()
" PlugUpdate
" PlugInstall
colorscheme gruvbox
set bg=dark
let g:tex_flavor = 'latex'
let g:vimtex_view_method = 'zathura'
let g:vimtex_quickfix_mode = 0
set conceallevel=1
let g:tex_conceal = 'abdmg'
let g:UltiSnipsExpandTrigger = '<tab>'
let g:UltiSnipsJumpForwardTrigger = '<tab>'
let g:UltiSnipsJumpBackwardTrigger = '<s-tab>'

function PrepareBeforeWrite()
	if &filetype == "python"
		%s/^	/    /e
	endif
	%s/\s\+$//e
	%s/\^datetime\^/\=strftime("%c")/e
	set fenc=utf-8
endfunction

augroup PreWriteEdits
autocmd BufWritePre * call PrepareBeforeWrite()
autocmd vimenter * ++nested colo gruvbox
" Start NERDTree and put the cursor back in the other window.
autocmd VimEnter * NERDTree | wincmd p
" Exit Vim if NERDTree is the only window remaining in the only tab.
autocmd BufEnter * if tabpagenr('$') == 1 && winnr('$') == 1 &&
			\ exists('b:NERDTree') && b:NERDTree.isTabTree() | quit | endif
" Close the tab if NERDTree is the only window remaining in it.
autocmd BufEnter * if winnr('$') == 1 && exists('b:NERDTree') &&
			\ b:NERDTree.isTabTree() | quit | endif
" Open the existing NERDTree on each new tab.
autocmd BufWinEnter * if getcmdwintype() == '' | silent NERDTreeMirror | endif
augroup END
syntax on

i really don't know why this happens, so i included the whole vimrc. sorry for this

Steps to Reproduce the Issue

1. open file with vim main.py
2. open other file in new tab
3. quit that second file with :wq or ZZ
4. get that error

Current Behavior (Include screenshots where appropriate.)

Expected Result

current tab is closed, both nerdtree and file windows are exited