Anchor download component with button inside form layout

Flow
1

Usual button, which is added to form layout occupies the entire form layout cell.
Button, that is placed inside Anchor (see beloe) is not.
https://vaadin.com/forum/thread/17010389/17303946

Anchor download = new Anchor(new StreamResource("filename.ext", () -> createResource()), "");
  download.getElement().setAttribute("download", true);
  download.add(new Button(new Icon(VaadinIcon.DOWNLOAD_ALT)));

How to force fix it ?

2

I know it´s old but for anyone else stumbling on it from google:
It worked for me when i did a removeAll() on the Anchor first.

Using the Example above, this should do the Trick.

Anchor download = new Anchor(new StreamResource("filename.ext", () -> createResource()), "");
download.getElement().setAttribute("download", true);
download.removeAll();
download.add(new Button(new Icon(VaadinIcon.DOWNLOAD_ALT)));