[Bug]: Codeblock inside Blockquote

[JohannesKaufmann]

Describe the bug

Unfortunately the ">" is missing for the other lines of the code block. This causes it to not render properly (see Screenshot)

HTML Input

<blockquote><pre>line 1
line 2
</pre></blockquote>

<blockquote><pre><b>
line 1
line 2
line 3
</b></pre></blockquote>

Generated Markdown

> ```
> line 1
line 2
> ```

> ```
> 
line 1
line 2
line 3
> ```

Expected Markdown

> ```
> line 1
> line 2
> ```

> ```
> 
> line 1
> line 2
> line 3
> ```

What plugins did you use?

base, commonmark