title: wkhtmltopdf lines torn between two pages
body: <p>I have a problem with wkhtmltopdf. I have an <code>&lt;article&gt;</code> element that spans across multiple pages. It's is not defined in the CSS, the width is fixed. Yet when the element breaks across pages, sometimes parts of the text are stuck on both the the previous and the next page.</p>
  
  <p>Do you have any idea what might cause that?</p>
  
  <p>And a second question. In the screenshot below you can also see a strange square character, right after the word "Empfindung", that appears at some (not all) of the line endings (yet it's not a line ending, it's supposed to be a regular space). I tried replacing it with a regular space again, yet it stays the same. The encoding of the source website (and the content) is utf-8.</p>
  
  <p>Thank you very much in advance!</p>
  
  <p><img src="https://i.stack.imgur.com/08wqB.png" alt="enter image description here"></p>