Undoing Changes to a Record
If you have made changes to a record but not saved the record or the form, you can undo your changes and restore its original values. In a record marked for deletion, this procedure removes the deletion mark as well as undoing any changes to field values.
Caution:
Note
that, after you save a record or form that has records that have been
changed, you cannot undo the changes.
To undo changes to a record:
Notice that the system restores any changes made to their original values, and the change indicator no longer appears in the row label.