After saving the product from front end - styling of custom fields gets erased

Hi,
I found a peculiar bug.

Here's the situation:

Our vendors can add some information about the product in a custom field.
When they do add text in the field (front-end), it gets printed to the product page (Caractéristiques).
For this print, everything is ok - the style is kept.

The issue comes when we want to echo this custom field again (under the title, at the top of the product page).
When the vendor adds the text, it doesn't keep the styling in the second echo (the one at the top of the page).
The thing is, when we do it through the administration, it keeps the styling.

I have no idea how to start debugging this.

The styling I'm talking about is some bullet points (ul and li).

Here's the code that echoes the custom field again at the top of the page:

<?php
    if (!empty ($this->element->product_particularites)) {
        echo '<p>' . $this->element->product_particularites . '</p>';
    }
?>

Thanks you, it worked! Apparently it wasn't a bug but a feature.

Have a nice day.