Actually drop rollback snapshot before collecting garbage,

1 files changed, 2 insertions, 1 deletions

diff --git a/ydb/core/tablet_flat/flat_mem_warm.cpp b/ydb/core/tablet_flat/flat_mem_warm.cpp
index 627a131d383..c4b4d5cac4b 100644
--- a/ydb/core/tablet_flat/flat_mem_warm.cpp
+++ b/ydb/core/tablet_flat/flat_mem_warm.cpp
@@ -51,7 +51,8 @@ void TMemTable::PrepareRollback() {
 void TMemTable::RollbackChanges() {
     Y_VERIFY(RollbackState);
     auto& state = *RollbackState;
-    Tree.RollbackTo(std::move(state.Snapshot));
+    Tree.RollbackTo(state.Snapshot);
+    state.Snapshot = { };
     Tree.CollectGarbage();
     Pool.RollbackTransaction();
     Blobs.Rollback(state.AddedBlobs);