Update incoming new avatars.

lib/pleroma/web/ostatus/ostatus.ex

@@ -42,8 +42,8 @@ def handle_incoming(xml_string) do
   def handle_note(entry, doc \\ nil) do
     content_html = string_from_xpath("/entry/content[1]", entry)
 
-    uri = string_from_xpath("/entry/author/uri[1]", entry) || string_from_xpath("/feed/author/uri[1]", doc)
-    {:ok, actor} = find_or_make_user(uri)
+    [author] = :xmerl_xpath.string('//author[1]', doc)
+    {:ok, actor} = find_make_or_update_user(author)
 
     context = (string_from_xpath("/entry/ostatus:conversation[1]", entry) || "") |> String.trim
     context = if String.length(context) > 0 do