Update xcube/core/store/preload.py

Co-authored-by: b-yogesh <[email protected]>

xcube/core/store/preload.py

@@ -55,7 +55,7 @@ def update(self, event: "PreloadState"):
         Args:
             event: the partial state.
         """
-        assert_instance(event, PreloadState, name="data_id")
+        assert_instance(event, PreloadState, name="event")
         if self.data_id == event.data_id:
             if event.status is not None:
                 self.status = event.status