1.0.216 - SSH Agent authentication stops working with OpenWRT router

[guardiande]

Describe the problem:
Since the upgrade to 1.0.216 authentication to a router running OpenWRT 23.05.5 changed: Authentication with ssh-agent and password stopped working in auto mode. Other connections work as before.

Setup:

• Mac OS Sequoia 15.1.1
• Tabby 1.0.216
• OpenWRT 23.05.5

Situation before:

• Start ssh-agent.
• Authentication in profile set to auto.
• Connection succeeds.

To Reproduce:

• Start ssh-agent.
• Make sure authentication in profile is set to auto.
• Connect the profile.
• Asks for private key passphrase, even though a key is not configured in the profile.
• Press escape.
• Asks again for passphrase.
• Press escape.
• Connection fails.

Output:

 SSH  Connecting to wrt
 SSH  Host key fingerprint:
 SSH   rsa-sha2-256  REDACTED 
 SSH  Loading private key: id_rsa
 SSH   !  Failed to load private key id_rsa: Error: Passphrase prompt cancelled
 SSH   !  Failed to authenticate using agent: Error: Send(SendError)
 X  SendError

Set authentication to password

• Set authentication in profile to password.
• Connect the profile.
• Asks for password.
• Input password.
• Connection succeeds.