Markdown in Classic Editor omits paragraph element on first paragraph of multi-paragraph list item.

### Impacted plugin

Jetpack

### Quick summary

In multi-paragraph list items written in Markdown in the Classic Editor, the resulting HTML only wraps successive paragraphs in `

` elements, ignoring the first paragraph.

### Steps to reproduce

1. Write a post using Markdown in the Classic Editor.
2. Publish or preview post.
3. View source.
4. Note the lack of `

` element.

### A clear and concise description of what you expected to happen.

Much like as correctly occurs in the Markdown Block when using the Block Editor, all paragraphs in a multi-paragraph list item should be wrapped in `

` elements. For example:

`

### What actually happened

The first paragraph in a multi-paragraph list item is left without a `

` elements resulting, for example, in something like:

`

### Impact

One

### Available workarounds?

No but the platform is still usable

### Platform (Simple and/or Atomic)

_No response_

### Logs or notes

_No response_

Start by reproducing the case through the Classic Editor's Markdown path and compare its generated HTML with the Markdown Block behavior described in the issue. Done means every paragraph in a multi-paragraph list item, including the first, is wrapped in a

element.

Written by the indexing model from the issue text.