Or we can just assume that the stamp will be removed when the Adutext program is run again. When the heading is matched to the authority record and the stamp is removed, the heading is also linked to the authority record. This can be dangerous, however, and potential changes need to be reviewed prior to loading the records or running Adutext. In fact, sometimes such global changes are simply not possible. The heading itself has changed to either Bibliographical literature or Bibliography of bibliographies.
Unicorn reports allow for different kinds of global changes, but they are limited.
They will not change headings without periods at the end, so they don't change any headings with subdivisions attached to them.