quick fix for broken properties

lib/connector/sabre/node.php

@@ -142,6 +142,7 @@ abstract class OC_Connector_Sabre_Node implements Sabre_DAV_INode, Sabre_DAV_IPr
 	public function updateProperties($properties) {
 		$existing = $this->getProperties(array());
 		foreach($properties as $propertyName => $propertyValue) {
+			$propertyName = preg_replace("/^{.*}/", "", $propertyName); // fix broken property name
 			// If it was null, we need to delete the property
 			if (is_null($propertyValue)) {
 				if(array_key_exists( $propertyName, $existing )){