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[Bug]: Invalid CheckpointToken on Promise Combinators #152

@bchampp

Description

@bchampp

Expected Behavior

The Promise Combinators example from the JS SDK repository is expected to work with sam local invoke.

Actual Behavior

The execution fails, there seems to be an invalid checkpoint token happening after the steps complete.

Steps to Reproduce

Setup the SAM CLI preview, and run samdev local invoke PromiseCombinators from the JS SDK repo examples: https://github.com/aws/aws-durable-execution-sdk-js/tree/development/packages/aws-durable-execution-sdk-js-examples

Note: It would be really, really useful if the SAM CLI had a way to "grab" logs from the emulator when these things happen.

SDK Version

0.0.1

Python Version

3.14

Is this a regression?

No

Last Working Version

No response

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