When I open ontology-metadata.owl from the purl, there are not annotations (e.g., definition, source) attached to "information content entity". They are there in the main IAO file, so just need to be copied over.

IIRC, this was a "feature" rather than a bug :) We intended to have only annotation properties being defined in ontology-metadata.owl, and not classes. We did need ICE for curation status etc, so we just copied this one over. We didn't copy annotations in case they were to be updated in the main file, and as we thought people getting ontology-metadata didn't really care about the ICE annotations themselves.

If this is an issue, and considering the update rate of ICE has not be too daunting, I could copy the annotations over. Let me know what you think?