Tackling "Failed to evaluate correlation query"

Problem observed on BPEL PM 10.1.3.3.

I developed a simple BPEL process that uses BPEL correlation to receive callbacks into the process.
For this purpose, I altered the process WSDL to add one more operation.
The initiating operation was named "processOrder". I decided to name the callback operation as "processOrderCallback".
I promptly defined two properties on the correlation set and provided aliases for both for the invocation and callback messages.
When I invoke the process, it throws up a CubeException and goes to recovery mode.
Why? Possibly because the callback operation name is a "superstring" of the invocation operation name.
When I looked at the logs, I could see that the engine was trying to evaluate the correlation query for the callback on the initiating message.
What I did next - just renamed the operation to "receiveOrderCallback" and re-ran the instance.
Bingo! - it worked.

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