I'm creating a custom web template, and I'd like for my configuration only to add the things I need above and beyond what's in the base web template (in my case, CMSPUBLISHING#0). My template works alright, but none of the configuration items from CMSPUBLISHING#0 are present in sites created from it.
Is this just the way templates work, or am I doing something wrong? If the former, then what's the point of having a base template in the first place?