Layerlist's state should be preserved when deactivating an offline area

When deactivating an offline area, layerlist's state is changed. It seems to reset to the default configuration (in terms of which layers are visible or not) in the underlying web map. This can be confusing. It would be better if the same layers were visible after deactivating. When activating an offline area, layer visibility is preserved. It should be the same when you deactivate