Please close this. It's my mistake. Saw it when had the test case ready ;-)
Hi, while forward compatibility is not delivered for PER encoding, extensible types are expected to be backward compatible. This is not the case for CHOICE in asn1c. To replicate the problem I've written a small test. You can find it here: https://gitea.pep.foundation/fdik/asn1-test How can I help to get this fixed? Yours, VB.