ENCRYPT: asymmetric encryption fails on merge

ENCRYPT fails to communicate after a network split and subsequent merge with asymmetric encryption. This works with symmetric encryption.
To reproduce:

• Members A and B
• Add <DISCARD use_gui="true"/> on top of UDP
• Form cluster (A,B)
• Create a network split: (A) and (B)
• Remove the network split
• Observe that with both symmetric and asymmetric encryption, the merge forms cluster (A,B)
• However, with asymmetric encryption, ENCRYPT fails to process any messages and rejects all messages, whereas with symmetric encryption, this works.

• Symmetric encryption: EncryptKeyStore.xml
• Asymmetric encryption: encrypt.xml