static stub zones can't point to IPv6 scoped addresses

It appears to be impossible to configure BIND to point a static stub zone at a scoped address (e.g. fe80::1%eth0).

The error message suggests that the restriction is deliberate, but I can't tell why it's imposed:

/etc/named.conf:44: scoped address is not allowed for static stub server-addresses

Using a scoped address would be desirable when using IPv6 link-local addressing to talk to a private server that doesn't otherwise have a global unicast address on it.