set a mapping to the id instead of it being either a number or the salesforce id

[igforce]

Feature Type

I'm interested in functionality that solves a current problem or limitation in how CumulusCI works.

Does your feature request solve a current problem?

It enables the sorting of the records correctly so that we can do a proper git diff.

Describe the solution you'd like

Able to map the id to a different field Insert Account:
sf_object: Account
soql_filter: BCM_Unique_Id__c!=null order by BCM_Unique_Id__c
fields:
Id : BCM_Unique_Id__c
BCM_Unique_Id__c : BCM_Unique_Id__c

Describe alternatives you've considered

Scripting to map the id

Additional context

No response