Commerce – How relates IContentRepository.Save(IContent content, SaveAction action, AccessLevel access) to Find indexing?

// Commerce
var freshNewName = "Fresh New Name";
var clone = brandProductContent.CreateWritableClone<CatalogContentBase>();
clone.Name = freshNewName;
clone.DisplayName = freshNewName;

I found that for CMS is working automatically under certain circumstainces (Indexing/Introduction): “Given that we have referenced the EPiServer.Find.Cms assembly in our EPiServer CMS project published content will be automatically indexed. Content are also reindexed, or deleted from the index, when they are saved, moved or deleted. Each language version …”.