DisplayName not syncronized after AD group renaming

In TFS we assigned AD groups to Teams. After renaming the the AD groups [Name, SamAccountName] the [Tfs_Configuration].[dbo].[tbl_Identity] table should be updated. This happens only partial:

column: [DistinguishedName] is updated 

but columns: [ProviderDisplayName], [DisplayName], [AccountName]: are not updated! 

So we see in TFS Web App the old AD group names!

Why this columns are not updated?
Is this default behavior that this columns are not updated or is somewhere in AD some old 'DisplayName'
[For groups the DisplayName should come from: DistinguishedName!?]

Can we update the [ProviderDisplayName], [DisplayName], [AccountName] columns manually by sql statement without other effects in TFS?