I'd remove the dependency on the NIS schema. NIS schema is crusty and old first of all and why have the dependency if we only dep on a single AT?
The adsconfig schema that will be used for CiDIT currently depends on NIS schema (on the ipHostNumber AT)
as the NIS schema is disabled by default loading adsconfig schema is not possible.
there are two options
1. Enable NIS schema by default
2. Remove the dependency on NIS