Fortigate - Workaround Blast Radius Mitigation

From OISecWiki

In versions 7.2.11, 7.4.6 and 7.6.1 Fortigate introduced mitigation overrides[1] for the Blast Radius mitigation they introduced in the version before, it can be enabled from the cli per server

config user radius
    edit "radius"
        set server "xx.xx.xx.xx"
        set require-message-authenticator disable
    next
end