<p> wrongly inserted before <i> or <b>

When parsing a simple text such as " my emphasis sentence", Document.summary() insert a paragraph

before the opening .

This seems to open mostly when the text is not already in
but in a
.

Example : http://negligeable.blogspot.com/2015/08/vous-etes-mort-mais-vous-ne-le-savez-pas_5.html