The page says
"When importing properties, there is a minor additional effect: the imported element will also define the datatype of the property. In this example, the property foaf:name is declared as a string merely through its import statement. If you import a property, remove its "has type" statement."
If I do this, then all imported properties get the datatype 'Page'. Restoring the 'has type' statement seems to put everything right again, but then the datatypes set in the import page are simply ignored. This is for SemanticMediaWiki1.7.1 (mediawiki 1.20). Marinheiro (talk) 11:30, 10 December 2012 (CET)