diff --git a/src/Storages/StorageReplicatedMergeTree.cpp b/src/Storages/StorageReplicatedMergeTree.cpp
index 53e6456f7fc..6f406f610b7 100644
--- a/src/Storages/StorageReplicatedMergeTree.cpp
+++ b/src/Storages/StorageReplicatedMergeTree.cpp
@@ -9159,7 +9159,7 @@ std::pair<bool, NameSet> StorageReplicatedMergeTree::unlockSharedDataByID(
 
         files_not_to_remove.insert(parent_not_to_remove.begin(), parent_not_to_remove.end());
 
-        LOG_TRACE(logger, "Remove zookeeper lock {} for part {}", zookeeper_part_replica_node, part_name);
+        LOG_TRACE(logger, "Removing zookeeper lock {} for part {} (files to keep: [{}])", zookeeper_part_replica_node, part_name, fmt::join(files_not_to_remove, ", "));
 
         if (auto ec = zookeeper_ptr->tryRemove(zookeeper_part_replica_node); ec != Coordination::Error::ZOK)
         {
@@ -9196,7 +9196,7 @@ std::pair<bool, NameSet> StorageReplicatedMergeTree::unlockSharedDataByID(
         }
         else
         {
-            LOG_TRACE(logger, "No more children left for for {}, will try to remove the whole node", zookeeper_part_uniq_node);
+            LOG_TRACE(logger, "No more children left for {}, will try to remove the whole node", zookeeper_part_uniq_node);
         }
 
         auto error_code = zookeeper_ptr->tryRemove(zookeeper_part_uniq_node);
@@ -9252,8 +9252,19 @@ std::pair<bool, NameSet> StorageReplicatedMergeTree::unlockSharedDataByID(
         }
         else
         {
-            LOG_TRACE(logger, "Can't remove parent zookeeper lock {} for part {}, because children {} ({}) exists",
-                zookeeper_part_node, part_name, children.size(), fmt::join(children, ", "));
+            /// It's possible that we have two instances of the same part with different blob names of
+            /// FILE_FOR_REFERENCES_CHECK aka checksums.txt aka part_unique_id,
+            /// and other files in both parts are hardlinks (the same blobs are shared between part instances).
+            /// It's possible after unsuccessful attempts to commit a mutated part to zk.
+            /// It's not a problem if we have found the mutation parent (so we have files_not_to_remove).
+            /// But in rare cases mutations parents could have been already removed (so we don't have the list of hardlinks).
+
+            /// I'm not 100% sure that parent_not_to_remove list cannot be incomplete (when it's not empty)
+            if (part_info.mutation && parent_not_to_remove.empty())
+                part_has_no_more_locks = false;
+
+            LOG_TRACE(logger, "Can't remove parent zookeeper lock {} for part {}, because children {} ({}) exists (can remove blobs: {})",
+                zookeeper_part_node, part_name, children.size(), fmt::join(children, ", "), part_has_no_more_locks);
         }
     }