Allows migrator implementations to see which documents are going to be overwritten and which are going to be inserted. Use case: additional logging for missing documents (ones getting inserted) matching certain criteria.
Coverage decreased (-0.01%) to 67.895% when pulling a963bf41cfdf91ffc111d23aa3c13decd8be68b6 on beforeSaveToDestination into 00f5d66ee0e6bce780c5b180c81e208579cd0678 on master.
Allows migrator implementations to see which documents are going to be overwritten and which are going to be inserted. Use case: additional logging for missing documents (ones getting inserted) matching certain criteria.