After the data migration, we identify a large number of duplicates, especially because the "company name" is the same as the "display name".
This means that the duplicates must be cleaned up. For example, if you clean up a duplicate on page 5 and merge it, then the first data record is jumped back to page 1. Then you have to leaf through to page 5 again to continue the test at the previous point. Very annoying. And page 5 was just an example, for us it's page 35 ... and much more ...
The fix is relatively easy. After merging, jump to the current record, not the first.