Fix issue with messaging at session-level

evennia/server/serversession.py

@@ -400,6 +400,7 @@ class ServerSession(Session):
         # this can happen if this is triggered e.g. a command.msg
         # that auto-adds the session, we'd get a kwarg collision.
         kwargs.pop("session", None)
+        kwargs.pop("from_obj", None)
         if text is not None:
             self.data_out(text=text, **kwargs)
         else: