embedding stuff in a div tag does not prevent it from being parsed

[janwilmans]

<div>std::shared<Foo></div>

is transformed to

<div>
  std::shared<foo></foo>
</div>

or

<div>
<form action="https://www.paypal.com/cgi-bin/webscr" method="post" target="_top">
<input type="hidden" name="cmd" value="_s-xclick">
<input type="hidden" name="hosted_button_id" value="HWVUJ77YRBW24">
<input type="image" src="https://www.paypalobjects.com/en_US/NL/i/btn/btn_donateCC_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!">
<img alt="" border="0" src="https://www.paypalobjects.com/nl_NL/i/scr/pixel.gif" width="1" height="1">
</form>
</div>

is completely lost after two round-trips