Raise if GitHub importer representation has no GitHub identifiers
What does this MR do and why?
This is a follow-up to !139466 (merged) which re-instates the behaviour of alerting a developer if a representation is missing its identifiers.
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
-
I have evaluated the MR acceptance checklist for this MR.