Fix for last_modified being None (#223)

jupyterlab · Dec 19, 2023 · c1f94fd · c1f94fd
1 parent 6b9986b
commit c1f94fd
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/jupyter_collaboration/rooms.py b/jupyter_collaboration/rooms.py
@@ -187,7 +187,9 @@ async def _on_content_change(self, event: str, args: dict[str, Any]) -> None:
                 event (str): Type of change.
                 args (dict): A dictionary with format, type, last_modified.
         """
-        if event == "metadata" and self._last_modified < args["last_modified"]:
+        if event == "metadata" and (
+            self._last_modified is None or self._last_modified < args["last_modified"]
+        ):
             self.log.info("Out-of-band changes. Overwriting the content in room %s", self._room_id)
             self._emit(LogLevel.INFO, "overwrite", "Out-of-band changes. Overwriting the room.")