Check for different schema versions for certificates stored for the same person

[Jo-Achim]

Current Implementation

Existing, different schemes are not tested automatically.

Suggested Enhancement

Against the background of possible further vaccination schemes, I would like to suggest that in the future already existing, scanned, vaccination certificates are automatically taken into account in the validity check - provided that the test (with the previous certificate) turns out negative.
For example, the test with the standard certificate fails, then test automatically the next certificate, ...

Expected Benefits

All certificates of the user in this context are automatically tested for their validity for the destination country. The user gets the maximum comfort and security.

Cross reference: #609 (comment).

Additional context

It gets a little more complex. If several certificates are checked automatically, the user should be able to see / identify which of the certificates is valid, so that he can then show the correct one if necessary. No matter whether in the CWA or CovPass.

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Internal Tracking-ID: EXPOSUREAPP-9052