reports>config operation history needs the resource column to be disambiguated. see ConfigurationHistoryDataSource
jay did both the reports>config history and reports>recent operations pages. These now have a D12N ancestry column and the resource column is D12N'ed too.
Verified on build#1140 (Version: 4.0.0-SNAPSHOT Build Number: 0589b9e) The resource column on pages reports>config history and reports>recent operations is disambiguated These pages show ancestry column and hover information, Marking as verified.
Bookkeeping - closing bug - fixed in recent release.