Cannot bind <C-h>

[pet3r]

Describe the bug
I have used the <C-h> to switch to the left editor group.
Since one of the recent updates it's no longer works.

To Reproduce
Steps to reproduce the behavior:

1. Add this to settings.json and save it

 "vim.insertModeKeyBindings": [
        {
            "before": ["<C-h>"],
            "after": ["<Esc>", "<C-w>", "h"]
        }
]

2. Split the editor to two columns
3. Enter insert mode in the right column
4. Press <C-h>
5. Nothing happens

Expected behavior
Switch the focus to the left column

Environment (please complete the following information):

• Extension (VsCodeVim) version: 0.16.5
• VSCode version: 1.27.2
• OS: Ubuntu 17.10

Additional context
I removed the default keybinding for Ctrl+h in VSCode (Replace).
I have similar settings for switching to the editor group on the right. I have noticed that it only works after a second try.

[pet3r]

It seems it's working again.
VSCode: 1.28.0
VsCodeVim: 0.16.9