"Press Enter or type command to continue" prompt at uncomment multi lines

[AlexMasterov]

Hello

I get this annoying prompt often with javascript filetype:

// const fn = () => {};
// const fn2 = () => {};

If I press 2gcc for these lines then prompt will appear:

nvim --version:

NVIM v0.5.0-dev+1405-g2f0e5e7e6
Build type: RelWithDebInfo
LuaJIT 2.1.0-beta3

I found that disabling Shougo/context_filetype.vim plugin solves this problem.