Global Python Variables labled 'i', 'ii', and 'k' give an Error "no variable exists with name"

[nbauernfeind]

i = time_table("PT1s")
ii = time_table("PT1s")
k = time_table("PT1s")

Yield this error:

io.grpc.StatusRuntimeException: FAILED_PRECONDITION: Could not resolve 'sourceId': no variable exists with name 'k'
	at io.grpc.Status.asRuntimeException(Status.java:537)
	at io.grpc.protobuf.StatusProto.toStatusRuntimeException(StatusProto.java:52)
	at io.deephaven.proto.util.Exceptions.statusRuntimeException(Exceptions.java:14)
	at io.deephaven.server.console.ScopeTicketResolver.resolve(ScopeTicketResolver.java:110)
	at io.deephaven.server.console.ScopeTicketResolver.resolve(ScopeTicketResolver.java:87)
	at io.deephaven.server.session.TicketRouter.resolve(TicketRouter.java:73)
	at io.deephaven.server.session.TicketRouter.resolve(TicketRouter.java:106)
	at io.deephaven.server.table.ops.TableServiceGrpcImpl.resolveOneShotReference(TableServiceGrpcImpl.java:719)
	at io.deephaven.server.table.ops.TableServiceGrpcImpl.lambda$oneShotOperationWrapper$8(TableServiceGrpcImpl.java:693)
	at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
	at java.base/java.util.Collections$2.tryAdvance(Collections.java:4820)
	at java.base/java.util.Collections$2.forEachRemaining(Collections.java:4828)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578)
	at io.deephaven.server.table.ops.TableServiceGrpcImpl.oneShotOperationWrapper(TableServiceGrpcImpl.java:694)
	at io.deephaven.server.table.ops.TableServiceGrpcImpl.applyPreviewColumns(TableServiceGrpcImpl.java:379)
	at io.deephaven.proto.backplane.grpc.TableServiceGrpc$MethodHandlers.invoke(TableServiceGrpc.java:3791)
	at io.grpc.stub.ServerCalls$UnaryServerCallHandler$UnaryServerCallListener.onHalfClose(ServerCalls.java:182)
	at io.grpc.PartialForwardingServerCallListener.onHalfClose(PartialForwardingServerCallListener.java:35)
	at io.grpc.ForwardingServerCallListener.onHalfClose(ForwardingServerCallListener.java:23)
	at io.grpc.ForwardingServerCallListener$SimpleForwardingServerCallListener.onHalfClose(ForwardingServerCallListener.java:40)
	at io.deephaven.server.session.SessionServiceGrpcImpl$SessionServiceCallListener.lambda$onHalfClose$1(SessionServiceGrpcImpl.java:406)
	at io.deephaven.server.session.SessionServiceGrpcImpl.rpcWrapper(SessionServiceGrpcImpl.java:444)
	at io.deephaven.server.session.SessionServiceGrpcImpl$SessionServiceCallListener.onHalfClose(SessionServiceGrpcImpl.java:406)
	at io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.halfClosed(ServerCallImpl.java:351)
	at io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1HalfClosed.runInContext(ServerImpl.java:860)
	at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
	at io.grpc.internal.SerializeReentrantCallsDirectExecutor.execute(SerializeReentrantCallsDirectExecutor.java:49)
	at io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener.halfClosed(ServerImpl.java:868)
	at io.grpc.internal.AbstractServerStream$TransportState.deframerClosed(AbstractServerStream.java:238)
	at io.grpc.internal.MessageDeframer.close(MessageDeframer.java:234)
	at io.grpc.internal.MessageDeframer.closeWhenComplete(MessageDeframer.java:192)
	at io.grpc.internal.AbstractStream$TransportState.closeDeframer(AbstractStream.java:201)
	at io.grpc.internal.AbstractServerStream$TransportState.inboundDataReceived(AbstractServerStream.java:265)
	at io.grpc.servlet.jakarta.ServletAdapter$GrpcReadListener.lambda$onAllDataRead$1(ServletAdapter.java:337)
	at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:133)
	at com.google.common.util.concurrent.DirectExecutor.execute(DirectExecutor.java:31)
	at io.grpc.internal.SerializingExecutor.schedule(SerializingExecutor.java:102)
	at io.grpc.internal.SerializingExecutor.execute(SerializingExecutor.java:95)
	at io.grpc.servlet.jakarta.ServletServerStream$ServletTransportState.runOnTransportThread(ServletServerStream.java:144)
	at io.grpc.servlet.jakarta.ServletAdapter$GrpcReadListener.onAllDataRead(ServletAdapter.java:336)
	at org.eclipse.jetty.server.HttpInput.run(HttpInput.java:411)
	at org.eclipse.jetty.server.handler.ContextHandler.handle(ContextHandler.java:1466)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:587)
	at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:461)
	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:421)
	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:390)
	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:277)
	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.produce(AdaptiveExecutionStrategy.java:193)
	at org.eclipse.jetty.http2.HTTP2Connection.produce(HTTP2Connection.java:208)
	at org.eclipse.jetty.http2.HTTP2Connection.onFillable(HTTP2Connection.java:155)
	at org.eclipse.jetty.http2.HTTP2Connection$FillableCallback.succeeded(HTTP2Connection.java:450)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:100)
	at org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53)
	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:421)
	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:390)
	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:277)
	at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.run(AdaptiveExecutionStrategy.java:199)
	at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:411)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)
	at java.base/java.lang.Thread.run(Thread.java:832)

Probably we should filter the variables from takeSnapshot against the NameValidator.