Merge pull request #226 from meyerd/master

Only iterate props in REPORT request if they are there

radicale/xmlutils.py

@@ -463,7 +463,7 @@ def report(path, xml_request, collection):
     root = ET.fromstring(xml_request.encode("utf8"))
 
     prop_element = root.find(_tag("D", "prop"))
-    props = [prop.tag for prop in prop_element]
+    props = [prop.tag for prop in prop_element] if prop_element else []
 
     if collection:
         if root.tag in (_tag("C", "calendar-multiget"),