While converting from HTML to ePub Calibre adds allegedly missing tags that are in fact not missing:
( 1 )
HTML: <p> aa <font ... > bb </font> cc </p>
ePub: <p> aa
</p> <font ... > bb </font>
<p> cc </p>
The result is that a paragraph is split mid-sentence into two paragraphs.
( 2 ) Same applies with "<span" instead of "<font"
A browser displays the original ( 1 ) and ( 2 ) flawlessly, because this is simply valid HTML code.
( 3 ) An ugly workaround is to replace <p> by <br><br> and drop </p>, but that adds huge paragraph spacing.
Is there a solution I missed, or should I report this as a bug right-away?