View backed PropertyGraph throws on startup

Trying to use the examples defined here: https://docs.cloud.google.com/spanner/docs/graph/graph-with-views-how-to

If you define a PROPERTY GRAPH using Views as the source results in this error:

```
F0000 00:00:1772135904.042920 55 queryable_property_graph.cc:183] Data source table not found in catalog: GraphNode
*** Check failure stack trace: ***
@ 0xaaaab0c486f8 absl::lts_20240722::log_internal::LogMessage::SendToLog()
@ 0xaaaab0c48d6c absl::lts_20240722::log_internal::LogMessageFatal::~LogMessageFatal()
@ 0xaaaaaed3b4a4 google::spanner::emulator::backend::QueryableGraphElementTableInternal::QueryableGraphElementTableInternal()
@ 0xaaaaaed3b9b4 google::spanner::emulator::backend::QueryableGraphNodeTable::QueryableGraphNodeTable()
@ 0xaaaaaecd9448 google::spanner::emulator::backend::QueryablePropertyGraph::QueryablePropertyGraph()
@ 0xaaaaaece2d28 google::spanner::emulator::backend::Catalog::Catalog()
@ 0xaaaaaecc076c google::spanner::emulator::backend::ActionRegistry::ActionRegistry()
@ 0xaaaaaecc08ec google::spanner::emulator::backend::ActionManager::AddActionsForSchema()
@ 0xaaaaaea54f84 google::spanner::emulator::backend::Database::UpdateSchema()
@ 0xaaaaae9fd468 google::spanner::emulator::frontend::UpdateDatabaseDdl()
@ 0xaaaaae9f9af4 std::_Function_handler<>::_M_invoke()
@ 0xaaaaae9e92b8 google::spanner::emulator::frontend::UnaryGRPCHandler<>::Run()
@ 0xaaaaae9e95f4 google::spanner::emulator::frontend::Invoke<>()
@ 0xaaaaae9e980c google::spanner::emulator::frontend::DatabaseAdminService::UpdateDatabaseDdl()
@ 0xaaaab061aa20 std::_Function_handler<>::_M_invoke()
@ 0xaaaab061f64c grpc::internal::RpcMethodHandler<>::RunHandler()
@ 0xaaaab068985c grpc::Server::SyncRequest::ContinueRunAfterInterception()
@ 0xaaaab06916ac grpc::ThreadManager::MainWorkLoop()
@ 0xaaaab06918a8 grpc::ThreadManager::WorkerThread::WorkerThread()::{lambda()#1}::_FUN()
@ 0xaaaab0c1c308 grpc_core::(anonymous namespace)::ThreadInternalsPosix::ThreadInternalsPosix()::{lambda()#1}::_FUN()
@ 0xffff80ad2030 (unknown)
```