diff --git a/src/mito2/src/engine.rs b/src/mito2/src/engine.rs
index 2a4a04af58..e48eb45cf1 100644
--- a/src/mito2/src/engine.rs
+++ b/src/mito2/src/engine.rs
@@ -40,7 +40,6 @@ mod drop_test;
 mod edit_region_test;
 #[cfg(test)]
 mod filter_deleted_test;
-pub mod region_hook;
 #[cfg(test)]
 mod flush_test;
 #[cfg(test)]
@@ -57,6 +56,7 @@ mod parallel_test;
 mod projection_test;
 #[cfg(test)]
 mod prune_test;
+pub mod region_hook;
 #[cfg(test)]
 mod row_selector_test;
 #[cfg(test)]
diff --git a/src/mito2/src/region.rs b/src/mito2/src/region.rs
index 93ad67bb58..5fb34b7335 100644
--- a/src/mito2/src/region.rs
+++ b/src/mito2/src/region.rs
@@ -1203,10 +1203,11 @@ impl ManifestContext {
         }
 
         if let Some(hook) = hook
-            && let Some(action_list) = action_list_for_hook {
-                hook.on_manifest_updated(manifest.metadata.region_id, &action_list, version)
-                    .await;
-            }
+            && let Some(action_list) = action_list_for_hook
+        {
+            hook.on_manifest_updated(manifest.metadata.region_id, &action_list, version)
+                .await;
+        }
 
         Ok(version)
     }
diff --git a/src/mito2/src/worker/handle_copy_region.rs b/src/mito2/src/worker/handle_copy_region.rs
index b8f6acf09f..739bef7904 100644
--- a/src/mito2/src/worker/handle_copy_region.rs
+++ b/src/mito2/src/worker/handle_copy_region.rs
@@ -19,7 +19,9 @@ use store_api::storage::{FileId, RegionId};
 
 use crate::error::{InvalidRequestSnafu, MissingManifestSnafu, Result};
 use crate::manifest::action::{RegionEdit, RegionMetaAction, RegionMetaActionList};
-use crate::region::{FileDescriptor, MitoRegionRef, RegionFileCopier, RegionLeaderState, RegionMetadataLoader};
+use crate::region::{
+    FileDescriptor, MitoRegionRef, RegionFileCopier, RegionLeaderState, RegionMetadataLoader,
+};
 use crate::request::{
     BackgroundNotify, CopyRegionFromFinished, CopyRegionFromRequest, WorkerRequest,
 };
@@ -228,7 +230,10 @@ impl<S> RegionWorkerLoop<S> {
             committed_sequence: None,
         };
         let action_list = RegionMetaActionList::with_action(RegionMetaAction::Edit(edit.clone()));
-        info!("Applying {:?} to region {target_region_id}, reason: CopyRegionFrom", edit);
+        info!(
+            "Applying {:?} to region {target_region_id}, reason: CopyRegionFrom",
+            edit
+        );
         let version = region
             .manifest_ctx
             .update_manifest(RegionLeaderState::Writable, action_list, false)