Unexpected omission of HTML node that includes property attribute when node within ancestor node with datatype #63
Description
(Sorry for the convoluted issue title..)
Input:
<!DOCTYPE html>
<html lang="en" xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title>Test</title>
</head>
<body about="" prefix="schema: http://schema.org/">
<div about="#foo" datatype="rdf:HTML" property="schema:description">
<div>
<span lang="" property="schema:encodingFormat" xml:lang="">WebM</span>
</div>
</div>
</body>
</html>Output in Turtle (from https://rdf-play.rubensworks.net/ ):
<https://dokie.li/tmp/test.html#foo> <http://schema.org/encodingFormat> "WebM\n";
<http://schema.org/description> "\n<div xmlns=\"http://www.w3.org/1999/xhtml\" xmlns:schema=\"http://schema.org/\">\n</div>\n"^^<http://www.w3.org/1999/02/22-rdf-syntax-ns#HTML>Note that the span node is completely disappeared. If we change the property to rel, and span to a, a is preserved:
<https://dokie.li/tmp/test.html#foo> <http://schema.org/encodingFormat> <https://dokie.li/tmp/test.html#bar>;
<http://schema.org/description> "\n<div xmlns=\"http://www.w3.org/1999/xhtml\" xmlns:schema=\"http://schema.org/\">\n<a rel=\"schema:encodingFormat\" href=\"#bar\" xmlns=\"http://www.w3.org/1999/xhtml\" xmlns:schema=\"http://schema.org/\">WebM</a>\n</div>\n"^^<http://www.w3.org/1999/02/22-rdf-syntax-ns#HTML>Expected output when div:
<https://dokie.li/tmp/test.html#foo> <http://schema.org/encodingFormat> "WebM\n";
<http://schema.org/description> "\n<div xmlns=\"http://www.w3.org/1999/xhtml\" xmlns:schema=\"http://schema.org/\">\n<span lang=\"\" property=\"schema:encodingFormat\" xml:lang=\"\" xmlns=\"http://www.w3.org/1999/xhtml\" xmlns:schema=\"http://schema.org/\">WebM\n</span>\n</div>\n"^^<http://www.w3.org/1999/02/22-rdf-syntax-ns#HTML>If we remove the div immediately around the span (in the input), the output seems to preserve the span:
<https://dokie.li/tmp/test.html#foo> <http://schema.org/encodingFormat> "WebM\n";
<http://schema.org/description> "\n<span lang=\"\" property=\"schema:encodingFormat\" xml:lang=\"\" xmlns=\"http://www.w3.org/1999/xhtml\" xmlns:schema=\"http://schema.org/\">WebM\n</span>"^^<http://www.w3.org/1999/02/22-rdf-syntax-ns#HTML>Are these outputs conforming or did I misunderstand the processing rules?