Steps to reproduce:

1. Open release notes for https://www.zabbix.com/rn/rn5.0.8rc1, click Download
   
2. No version selector, no actual links, still 5.2.0rc2.

Result:

1. Where is no option to choose which one to download (5.0.XrcX/5.2.XrcX or 4.0.XrcX).
2. So you can guess which link to use like: https://cdn.zabbix.com/zabbix/sources/release_candidates/5.0/zabbix-5.0.8rc1.tar.gz

Expected:
Sources should be available through web form with convenient way to download them.