App freezes when trying to reconnect after host key changes

[MatzeKitt]

• Sequel Ace Version (including build number): 4.0.13 Build 20062
• Sequel Ace Source (App Store/GitHub/Homebrew): GitHub
• macOS Version: 14.2.1 (23C71)
• Processor Type (Intel/Apple): Apple
• macOS Localization: German

Is Issue Present in Latest Beta?

Yes

Description
If a host key changes (in our case as part of load balancing) and you try to interact with the data within an open connection, Sequel Ace does correctly recognize this, but a reconnect is impossible since, as soon as the popup notifying about this change is displayed, the app freezes with nearly 100 % CPU core utilization and you cannot click on any of the buttons in the popup.

Steps To Reproduce

1. Open a connection
2. Change the host key of the connected machine
3. Refresh the table view

Expected Behaviour

The buttons popup can be clicked and a reconnect works without an app freeze.

Related Issues

Maybe related: #1673

Additional Context

[Jason-Morcos]

This feels like a pretty niche one, but would be happy to review and merge a fixing PR here if someone wants to make one :)