@Override
    public boolean canNotifyStatusChanged(Request request) {
        return parentCanNotifyStatusChanged() && request.equals(full) && !isAnyResourceSet();
    }
Returns true if the request is the request loading the fullsize image and if neither the full nor the thumbnail
image have completed sucessfully.

@param request {@inheritDoc}.
core/src/main/java/com/bumptech/glide/request/ThumbnailRequestCoordinator.java