IPSEC phase2 edit not working

[Andreas_]

On a firewall with 20.1.3 (now 20.1.6), I noticed that it's not possible to edit phase2 entries on an existing configuration (unchanged and running for a while, probably older than a year)

When editing, the remote address or network isn't shown, when duplicating a single address phase2 entry with a different target addr, I get "already exists".

Digging further, I find some entries displaying (and probably editing) correctly, others not. A look at config.xml shows the problem: then non-functional entries don't habe a uniqid.