CocConfig settings are not honored in lua files

[poetaman]

Result from CocInfo

## versions

vim version: NVIM v0.5.0-dev+nightly-120-g1186f7dd9
node version: v15.11.0
coc.nvim version: 0.0.80-bd41b16bd9
coc.nvim directory: /Users/reportaman/.vim/plugged/coc.nvim
term: WezTerm
platform: darwin

## Log of coc.nvim

2021-04-03T11:05:47.203 INFO (pid:1719) [coc-tabnine] - Using tabnine from /Users/reportaman/.config/coc/extensions/coc-tabnine-data/binaries/3.3.104/aarch64-apple-darwin/TabNine
2021-04-03T11:05:47.205 INFO (pid:1719) [plugin] - coc.nvim 0.0.80-bd41b16bd9 initialized with node: v15.11.0 after 47ms
2021-04-03T11:05:50.789 INFO (pid:1719) [attach] - receive notification: showInfo []

Describe the bug

"suggest.minTriggerInputLength": 2 is not honored in .lua files. I am using coc-lua. It starts triggering right after I type 1 character instead of waiting for 2, it doesn't seem to honor other settings like "suggest.triggerCompletionWait": 500 either. The reason I am filing this here is: these options should be global options, and apply irrespective of what coc-lua does internally.

Reproduce the bug

File mini.vim

set nocompatible
set runtimepath^=/Users/reportaman/.vim/plugged/coc.nvim
filetype plugin indent on
syntax on
set hidden 

File ~/.config/nvim/coc-settings.json

{
"Lua.telemetry.enable": false,
"Lua.workspace.maxPreload": 0,
"Lua.workspace.library": {},
"Lua.diagnostics.enable": false,
"Lua.workspace.useGitIgnore": true,
"suggest.minTriggerInputLength": 2,
"suggest.triggerCompletionWait": 500,
"suggest.removeDuplicateItems": true
}

• Start (neo)vim with command: nvim -u mini.vim
• :e <someluafile.lua>.
• Enter insert mode press i, and type one character f (at this point pum will become visible, and show a bunch of suggestions)

[chemzqm]

it could be trigger character or trigger pattern matched