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_heartbeat.cpp:753: MISSING_LOCK 149194 Accessing "this->this" without holding lock "mongo::repl::ReplicationCoordinatorImpl._mutex". Elsewhere, "mongo::repl::ReplicationCoordinatorImpl::_scheduleHeartbeatReconfig(mongo::WithLock, mongo::repl::ReplSetConfig const &)::[lambda(mongo::executor::TaskExecutor::CallbackArgs const &) (instance 1)]::operator ()(mongo::executor::TaskExecutor::CallbackArgs const &) const::[lambda(mongo::Status) (instance 1)].this" is written to with "ReplicationCoordinatorImpl._mutex" held 1 out of 1 times.