TB 115: CryptoAPI.sync() failed result: Error: rnp_key_is_locked failed

@severusvn reports (from #91 (comment 1484917371)):

I have a bug today, with signing the message: CryptoAPI.sync() failed result: Error: rnp_key_is_locked failed I cannot sign with my key, especially, the ECDSA key showed that it was not expired, RSA key showed fine and my keys are on my Yubikey. The key on disk is fine, can sign and encrypt.