ChorusHubServerInfo uses static field for discovered server, causing state leakage between instances

[imnasnainaec]

ChorusHubServerInfo stores its discovered server in a static field (src/LibChorus/ChorusHub/ChorusHubServerInfo.cs):

private static ChorusHubServerInfo _chorusHubServerInfo;

All code paths that call FindServerInformation() — including SyncStartControl.CheckNetworkStatusAndUpdateUI — share this single instance. In test scenarios or when multiple independent sync sessions run in the same process, a stale server discovered by one session leaks into another. The existence of ClearServerInfoForTests() as a public workaround confirms this is a known design issue:

public static void ClearServerInfoForTests()
{
    _chorusHubServerInfo = null;
}

Fix: Convert _chorusHubServerInfo to an instance member, or restructure discovery to use a properly scoped pattern that does not share state across unrelated sessions.

Found via DeepWiki.