Domain exclusions from wildcard DNS override

[CJ]

I have a host override configured in Unbound for server.example.com.  Then I have an alias for *.server.example.com  using the server.example.com host override.

Now I need to direct www.server.example.com to a different IP than *.server.example.com.  Adding www.server.example.com causes Unbound to fail with "error: local-data in redirect zone must reside at top of zone".  I can't create another alias because it will only point to a host override.

Any suggestions for how to configure this?