Kevin C

I think a good generalization of this is "merge into other entry as historical entry" and "extract historical entry as new standalone entry", building on the existing "entry history" feature.

Yeah, probably. I've made [custom fixes](https://github.com/googleapis/gapic-generator-python/pull/1245#issuecomment-1668438884) in my usages that's been in place for a long time now: > I'm just going to give up on this, due to lack...