Underline style is removed after converting HTML to DraftJS Editor content

Let's say I pass this HTML:
<p><u>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</u></p>

When I convert it to DraftJS content and set it as editor state, the editor shows no trace of any underlined text. I checked if the issue is possibly with the package that I use to convert back to HTML string, but it doesn't seems like it.

Here's what I do:

`

setEditorState = (slide = this.props.editor.slide) => {
    const blocksFromHTML = htmlToDraft(slide.text.text || '');

    const state = blocksFromHTML.contentBlocks
        ? EditorState.createWithContent(
            ContentState.createFromBlockArray(
                blocksFromHTML.contentBlocks,
                blocksFromHTML.entityMap
            )
        )
        : createEditorStateWithText('');

    return state;
};

`

Am I doing something wrong, or is there a bug with the package?

Start by reproducing the reported conversion with the provided HTML and the htmlToDraft entry point. Trace how inline styles are represented in the resulting DraftJS content, then verify that underlined text is preserved when the content is loaded into the editor state.