Launching with restored sessions that are unreachable causes failure to open at all #2604

Description

When configured to Automatically reconnect on startup, and the server(s) are not available, HeidiSQL opens a single error and immediately quits. Every attempt to open results in this until all sessions have failed. e.g. I had 4 connections open, I have to open Heidi 5 times before the UI presents itself without quitting. In case it matters, they all use SSH tunnelling (in which the host is N/A)

HeidiSQL version and OS

12.21.0.7344 Win11/64

Database server version

Reproduction recipe

Enable Automatic reconnect on startup
Open several connections (possible all using SSH tunnelling)
Close HeidiSQL
Make the hosts unavailable
Reopen HeidiSQL

Error/Backtrace