TSDoc codeblocks mangle the @ sign

[freshgum-bubbles]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.79.0 (Insiders)
• OS Version: Windows 11 Pro, 22H2

Steps to Reproduce:

1. Use a codeblock in TSDoc, as follows:

/**
 * ```
 * @Test() class A {}
 * ```
 */

Expected Result: It renders correctly, without the @ symbol being interpreted as me
wanting to use a specific TSDoc function.

Actual Result:

This isn't a new issue by any means.
It was publicly reported back in 2020: microsoft/tsdoc#216
However, the user was told to post it here.
I can't find any pre-existing issues for the above problem.

[mjbvz]

Duplicate of microsoft/TypeScript#49273