Unexpected new line while press <CR> to accept a suggestion

[lancelock]

Result from CocInfo

vim version: VIM - Vi IMproved 8.2 8022550
node version: v15.11.0
coc.nvim version: 0.0.80-6e5a2aaeb5
coc.nvim directory: /Users/vixmatric/.config/nvim/plugged/coc.nvim
term: iTerm.app
platform: darwin

Describe the bug

Sometimes i press to accept a suggestion, it will insert a new line and move the cursor to the new line，that's not what i expected

Reproduce the bug

Related keybinding，copy from the README file

" Make auto-select the first completion item and notify coc.nvim to
" format on enter, could be remapped by other vim plugin
inoremap pumvisible() ? coc#_select_confirm()
: "<C-g>u<CR><c-r>=coc#on_enter()<CR>"

Screenshots (optional)

[chemzqm]

Can't understand

[lancelock]

@chemzqm 如图，我按一下回车键补全user这个词，期望是继续留在这一行，继续输入，但是自动换行了并且光标移动到了新的一行

[chemzqm]

我看不明白

[PangPangPangPangPang]

我也有同样问题，使用了下面这个 map
inoremap pumvisible() ? coc#_select_confirm()
: "<C-g>u<CR><c-r>=coc#on_enter()<CR>"
现象是：
当用 enter 触发了选择补全的时候不会在当前的位置进入 insert 模式，而是会在光标上方新插入一行并且进入 insert 模式。

[nima-dvlp]

I have the same problem, and same file type JavaScript/Typescript, but not in Rust, Flutter/Dart, Vim, etc.

[chemzqm]

The cursor position could be changed by other vim plugin.
Need minimal vimrc and verbose output from language server, please open a new issue.