diff --git a/crates/iceberg/src/transaction/overwrite.rs b/crates/iceberg/src/transaction/overwrite.rs
index 76b2e299f7..791a6e3069 100644
--- a/crates/iceberg/src/transaction/overwrite.rs
+++ b/crates/iceberg/src/transaction/overwrite.rs
@@ -420,9 +420,10 @@ mod tests {
         let table = make_v3_minimal_table_in_catalog(&catalog).await;
         let spec_id = table.metadata().default_partition_spec_id();
 
-        let original_file = test_data_file("test/original.parquet", spec_id);
+        let original_file1 = test_data_file("test/original1.parquet", spec_id);
+        let original_file2 = test_data_file("test/original2.parquet", spec_id);
         let tx = Transaction::new(&table);
-        let action = tx.fast_append().add_data_files(vec![original_file.clone()]);
+        let action = tx.fast_append().add_data_files(vec![original_file1.clone(), original_file2.clone()]);
         let tx = action.apply(tx).unwrap();
         let table = tx.commit(&catalog).await.unwrap();
 
@@ -438,7 +439,7 @@ mod tests {
         let action = tx
             .overwrite()
             .add_data_files(vec![replacement_file.clone()])
-            .delete_data_files(vec![original_file.clone()]);
+            .delete_data_files(vec![original_file1.clone(), original_file2.clone()]);
         let tx = action.apply(tx).unwrap();
         let table = tx.commit(&catalog).await.unwrap();
 
@@ -460,13 +461,15 @@ mod tests {
             }
         }
 
-        assert!(
-            all_entries
-                .iter()
-                .any(|(status, path)| *status == ManifestStatus::Deleted
-                    && path == "test/original.parquet"),
-            "Original file should be marked as Deleted, entries: {all_entries:?}",
-        );
+        for original_file in ["test/original1.parquet", "test/original2.parquet"] {
+            assert!(
+                all_entries
+                    .iter()
+                    .any(|(status, path)| *status == ManifestStatus::Deleted
+                        && path == original_file),
+                "Original file {original_file} should be marked as Deleted, entries: {all_entries:?}",
+            );
+        }
 
         assert!(
             all_entries
@@ -483,7 +486,7 @@ mod tests {
                 .additional_properties
                 .get("deleted-data-files")
                 .map(|s| s.as_str()),
-            Some("1")
+            Some("2")
         );
         assert_eq!(
             snapshot
@@ -491,7 +494,7 @@ mod tests {
                 .additional_properties
                 .get("deleted-records")
                 .map(|s| s.as_str()),
-            Some("1")
+            Some("2")
         );
 
         // Step 3: Fast append after overwrite — delete-only manifest must survive.
@@ -519,12 +522,14 @@ mod tests {
         }
 
         // The deleted entry must still be present after fast_append.
-        assert!(
-            all_entries
-                .iter()
-                .any(|(status, path)| *status == ManifestStatus::Deleted
-                    && path == "test/original.parquet"),
-            "Deleted entry should survive fast_append, entries: {all_entries:?}",
-        );
+        for original_file in ["test/original1.parquet", "test/original2.parquet"] {
+            assert!(
+                all_entries
+                    .iter()
+                    .any(|(status, path)| *status == ManifestStatus::Deleted
+                        && path == original_file),
+                "Deleted entry should survive fast_append, entries: {all_entries:?}",
+            );
+        }
     }
 }
diff --git a/crates/iceberg/src/transaction/snapshot.rs b/crates/iceberg/src/transaction/snapshot.rs
index c9d4da47ee..4424d802ed 100644
--- a/crates/iceberg/src/transaction/snapshot.rs
+++ b/crates/iceberg/src/transaction/snapshot.rs
@@ -398,10 +398,7 @@ impl<'a> SnapshotProducer<'a> {
             );
         }
 
-        let previous_snapshot = table_metadata
-            .snapshot_by_id(self.snapshot_id)
-            .and_then(|snapshot| snapshot.parent_snapshot_id())
-            .and_then(|parent_id| table_metadata.snapshot_by_id(parent_id));
+        let previous_snapshot = table_metadata.current_snapshot();
 
         let mut additional_properties = summary_collector.build();
         additional_properties.extend(self.snapshot_properties.clone());