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addielarue
9aa7fd5722
A Stream Host with an IPv6 address as the Forward Host was accepted and
saved but never activated. The generated stream config rendered
`proxy_pass {{ forwarding_host }}:{{ forwarding_port }}` as e.g.
`fe80::528:3c87:e7bb:ab08:25`, which nginx rejects with
"invalid port in upstream" because an IPv6 literal must be wrapped in
square brackets before the port is appended (`[fe80::...]:25`).
Normalize the stream forward host in generateConfig (alongside the existing
per-host-type data massaging) using net.isIPv6(), so IPv6 hosts render as
`[address]:port` while IPv4 addresses and hostnames are emitted unchanged.
The mutation is applied to the deep-copied render object, so persisted and
audit data are unaffected.
Fixes #5740