I can confirm that this error is still happening in 2.3, unfortunately. The original text looks like:
<p>This is one text</p>
<p>this is another text</p>
But when I activate wpd3, it becomes:
<p>This is one text</p>this is another text</p>
We’d love to use WPD3 more but we need this issue resolved because it affects every single page we have, whether there is a chart on there or not. So we have completely disabled it across our site.