If your domain's schema updates are not taking place or seem to be having problems, there is a utility from Win that can take some of the pain out of debugging problems with schema updates.
Setting the Display Name, Given Name and Last Name properties to complete a rename operation may also be required.
Note: The Add button will appear when Other is selected.
If a field to update is not available, select Other, and type the field name, then click the Add button.
But in most cases such modifications can be easily reversed and backing up correct values even simply with before any changes can save You some time on recovery.
But what troubles are more are changes which are adding attributes and classes to the schema. Because we are not able to perform authoritative restore of a schema in a case of failure.