Broken markdown for mixing backticks and tildes in code block

I tried this code and hovering over the function definition:

/// ```text
/// ~~~
/// ```
/// 
/// ~~~text
/// ```
/// ~~~
pub fn foo() {}

I expected to see two text code blocks like this:

~~~

```

Instead, garbled markdown shows up. Rustdoc renders this correctly.

rust-analyzer version: 0.4.1327-standalone

rustc version:

rustc 1.68.0-nightly (9c07efe84 2022-12-16)
binary: rustc
commit-hash: 9c07efe84f28a44f3044237696acc295aa407ee5
commit-date: 2022-12-16
host: x86_64-unknown-linux-gnu
release: 1.68.0-nightly
LLVM version: 15.0.6

Reproduce the reported example in rust-analyzer by hovering over the function definition, then inspect the hover rendering path and compare its Markdown handling with rustdoc. Done means mixed backtick and tilde fences render as the two expected text code blocks without garbling.