Adding an exception listener to a JsonReader doesn't work

If you add an exception listener to a JsonReader in Architect 3.1 it adds the new event below the JsonReader, but it does so with a "me" reference which does not exist:

Code:

            listeners: {
                exception: {
                    fn: me.onJsonException,
                    scope: me
                }
            }

The body of onJsonException is added to the model/store but it can't work because "me is not defined".

Sencha Architect

Adding an exception listener to a JsonReader doesn't work