Display of nerdtree broken. When deleting lines, artifact appears in the nerdtree windows.

[Rz-Rz]

Environment

• Operating System: Ubuntu 20.04
• Vim/Neovim version 0.7.2
• NERDTree version, found on first line of quickhelp ?: 6.10.16
• Are you using any of these NERDTree-dependent plugins? No nerdtree dependent plugin.
• Provide a minimal .vimrc file that will reproduce the issue.

call plug#begin()
Plug 'nvim-lua/plenary.nvim'
Plug 'nvim-lua/popup.nvim'
Plug 'nvim-telescope/telescope.nvim', { 'tag': '0.1.0' }
Plug 'preservim/nerdtree'
call plug#end()
" Telescope config
" Find files using Telescope command-line sugar.
nnoremap <silent>;f <cmd>Telescope find_files<cr>
nnoremap <silent>;g <cmd>Telescope live_grep<cr>
nnoremap <silent>;b <cmd>Telescope buffers<cr>
nnoremap <silent>;h <cmd>Telescope help_tags<cr>
" Nerdtree
nnoremap <leader>n :NERDTreeFocus<CR>
nnoremap <C-n> :NERDTree<CR>
nnoremap <C-t> :NERDTreeToggle<CR>
nnoremap <C-f> :NERDTreeFind<CR>

Steps to Reproduce the Issue

Open a nerdtree windows within a js file. Delete a few lines, they will glitch and appear stuck to the nerdtree side.

Current Behavior (Include screenshots where appropriate.)

Expected Result

There should be not artifact within the nerdtree windows.