To prevent accidental commits to production data, a senior data engineer implemented a policy requiring all development work to use clones of Delta Lake tables. After evaluating both DEEP and SHALLOW CLONE, the team opted for SHALLOW CLONE to create development tables. Several weeks later, cloned versions of certain Type 1 Slowly Changing Dimension (SCD) tables stop functioning. The transaction logs of the source tables indicate that VACUUM was executed the day before the issue arose. What explains why the cloned tables are no longer working? | Databricks Certified Data Engineer - Professional Quiz