Handling multiple local steps in a row

[cer]

This won't work as intended. The steps will be executed one after the other. But there is no guarantee that the saga will be completed successfully/compensated if any kind of failure occurs. Local and non-local steps should be interleaved.

Either:

• Not support this and throw an exception. The workaround would be to define non-local steps.
• Implement an internal messaging-based mechanism to drive the execution of local steps.