Signal from signal-with-start must be processed before Workflow Handler initialization

[roxblnfk]

There is a bug with startWithSignal() method.

The Workflow method is initialized before signal call.
But signal must be executed before Workflow Handler.

This feature is useful in scenarios where you want to ensure that a Workflow is running and that it receives specific information right from the beginning.
https://docs.temporal.io/develop/typescript/message-passing#signal-with-start

To be more precise, it is not even about knowing if the signal was received before the workflow execution. It is needed to ensure that signals are not lost if the main method decides to return. The most basic scenario is the main method returning a counter and a signal handler incrementing it.
https://community.temporal.io/t/will-workflow-method-be-processed-first-or-signal/1564/2

Test case in Harness: temporalio/features@9352318

Caution

Might be breaking change