Latest issued Vaccination DCC 2/2 does not have highest priority (EXPOSUREAPP-8756)

[mtwalli]

• Find latest Vaccination certificate by vaccinatedOn and issuedAt dates

Ticket

https://jira-ibs.wbs.net.sap/browse/EXPOSUREAPP-8756

[MikeMcC399]

@mtwalli

I've verified the fix on Android 8 with an older and a new 2/2 vaccination certificate.

This looks good! 👍🏻

Steps to verify

1. Clean install CWA deviceForTestersDebug 2.11.0-RC2
2. Complete onboarding
3. Tap "Certificates" tab, tap "CONTINUE"
4. Tap "+ CERTIFICATE" and scan an older complete EU Digital COVID Vaccination Certificate e.g. Number in a series of vaccinations/doses 2/2
5. Scroll down to Zertifikatkennung / Unique Certificate Identifier and make a note of the last few characters of the identifier
6. Tap back arrow
7. Tap "+ CERTIFICATE" and scan an a re-issued complete EU Digital COVID Vaccination Certificate e.g. Number in a series of vaccinations/doses 2/2 for the same person and the same vaccination date as in step 4
8. Tap right arrow
9. Scroll down to "Currently used certificate" and tap on it
10. Note that the Unique Certificate Identifier is from the older certificate scanned in first. 🙁

Now with the fix applied

1. Update to CWA from branch fix/8756-order-by-issued-at
2. Tap "Certificates" tab
3. Tap right arrow
4. Scroll down to "Currently used certificate" and tap on it
5. Note that the Unique Certificate Identifier is from the newer certificate scanned in second. 🚀 😄

[SamuraiKek]

LGTM.