Meaning and priority of standard XHTML properties

We have said in XHTML2 that things like

	<a title="gezellig" href="gezellig.html">gezellig</a>

is equivalent to

	<a href="gezellig.html">
		<meta property="title" content="gezellig"/>
	      gezellig
       </a>

The question has arisen, what happens with:

	<a title="Peioria" href="gezellig.html">
		<meta property="title" content="gezellig"/>
	      gezellig
       </a>

 From an RDF point of view, there's no problem (the element has two titles)  
but what should a browser do with respect to, for instance, tool tips?

Steven