vimrc remaps do not respect comments

Describe the bug
If "Use key mappings from a .vimrc file" is enable in settings, vim comments are not respected on mapping lines. Instead, the content of the comment is interpreted as part of the mapping.

To Reproduce
Steps to reproduce the behavior:

Add this to the vimrc:

map <leader>g gg" isometext

Then, trigger the mapping. Observe that the cursor has jumped to the first line, entered insert mode, and inserted the text "sometext" into the file.

Thank you!

Expected behavior
The behavior should be the same as vim. Running this mapping would execute "gg" and only "gg".

Screenshots
If applicable, add screenshots to help explain your problem.
If remapping-related, please attach log output: https://github.com/VSCodeVim/Vim#debugging-remappings.

Environment (please complete the following information):

• Extension (VsCodeVim) version: 1.23.1
• VSCode version: 1.69.0
• OS: macOS Monterey 12.3

Additional context
Add any other context about the problem here.

No source file or test is named in the issue. Start by reproducing the mapping from the report with “Use key mappings from a .vimrc file” enabled, then trace the remapping behavior. Done means the trailing Vim comment is ignored and triggering the mapping executes only “gg”, matching Vim.