Remapping "<leader> d" to "\"_" (black hole register) not working

[raulpenate]

Describe the bug I am trying to remap <leader> d to use the black hole register ("_) so that Vimium discards the deleted or changed text without saving it in a register. However, this remapping is not working as expected. Instead of behaving like "_, the command behaves like ci{, which means the text gets deleted but not properly handled by the black hole register.

To Reproduce

1. Add the following configuration to your settings.json:

   "vim.normalModeKeyBindings": [
     {
       "before": ["<leader>", "d"],
       "after": ["\"_"]
     }
   ],

2. Go to any source code in VSCode.
3. Copy some text from the file or another source.
4. Press <leader> d followed by ci{ to delete content inside curly braces.
5. Paste using ctrl+v or "+p.

Expected behavior

• The expected behavior is that <leader> d should set the black hole register, allowing you to delete content inside curly braces (ci{) without affecting the clipboard or registers.

• Instead, the behavior is as if ci{ is being executed directly, and the pasted content reflects the deletion, not the clipboard.

Screenshots Log example:

Video example:

https://github.com/user-attachments/assets/3dfc2be4-be01-430e-9c68-b5ad651912ac

Environment (please complete the following information):

• Extension (VsCodeVim) version: v1.28.0
• VSCode version: 1.92.2
• OS: EndeavourOS Linux x86_64

[HenryTSZ]

use this

    {
      "before": ["<leader>", "d"],
      "after": ["\"", "_"]
    },