Data race condition

The value of the shared data will be determined by the interleaving of thread execution. Thread shared data is accessed without holding an appropriate lock, possibly causing a race condition
/src/mongo/db/repl/replication_coordinator_impl.cpp:5031: MISSING_LOCK 175054 Accessing "this->this->_stepDownPending" without holding lock "mongo::repl::ReplicationCoordinatorImpl._mutex". Elsewhere, "mongo::repl::ReplicationCoordinatorImpl._stepDownPending" is written to with "ReplicationCoordinatorImpl._mutex" held 2 out of 2 times.