Publishing a mergeback overwrites "latest version" on the website

published 19.8.0, then 18.3.0 - website shows the backport

<img width="217" height="139" alt="Image" src="https://github.com/user-attachments/assets/6ee97d21-39db-4fd8-9adc-1d11ed8a4aaa" />

<img width="590" height="793" alt="Image" src="https://github.com/user-attachments/assets/2ccfd998-b19c-42e2-91bc-b4190b605aa9" />