SERVER-39973 Router should not decide to use recovery commit path based on whether participant list is empty

2 files changed, 2 insertions, 2 deletions

diff --git a/src/mongo/s/transaction_router.cpp b/src/mongo/s/transaction_router.cpp
index 51ca27d08b1..af5b386da5d 100644
--- a/src/mongo/s/transaction_router.cpp
+++ b/src/mongo/s/transaction_router.cpp
@@ -667,7 +667,7 @@ Shard::CommandResponse TransactionRouter::_commitMultiShardTransaction(Operation
 
 Shard::CommandResponse TransactionRouter::commitTransaction(
     OperationContext* opCtx, const boost::optional<TxnRecoveryToken>& recoveryToken) {
-    if (_participants.empty()) {
+    if (_isRecoveringCommit) {
         uassert(50940, "cannot commit with no participants", recoveryToken);
         return _commitWithRecoveryToken(opCtx, *recoveryToken);
     }
diff --git a/src/mongo/s/transaction_router_test.cpp b/src/mongo/s/transaction_router_test.cpp
index 58dbd4f8600..30e8a93da69 100644
--- a/src/mongo/s/transaction_router_test.cpp
+++ b/src/mongo/s/transaction_router_test.cpp
@@ -665,7 +665,7 @@ TEST_F(TransactionRouterTestWithDefaultSession, CannotCommitWithoutParticipants)
 
     auto& txnRouter(*TransactionRouter::get(operationContext()));
     txnRouter.beginOrContinueTxn(
-        operationContext(), txnNum, TransactionRouter::TransactionActions::kStart);
+        operationContext(), txnNum, TransactionRouter::TransactionActions::kCommit);
     txnRouter.setDefaultAtClusterTime(operationContext());
 
     ASSERT_THROWS(txnRouter.commitTransaction(operationContext(), boost::none), AssertionException);