Registered session is overriding commandline URL

[com2]

Short description

When a tab session is marked Startup using the "Register for Startup"context menu option then the command line URL is opened but then overridden by the registered session.

Steps to reproduce

1. Start browser with clean profile
2. Install Tab Session Manager
3. Open a number of web sites in different tabs
4. Save the session
5. Register it for Startup
6. Close browser
7. Open a console window
8. Start browser from command line with a URL that is different from the ones that were saved in the previous session

Expected result

1. The Registered session with its tabs and windows to reopen
2. The URL from the command line to open in another tab.

Actual result

1. The URL from the command line is opened in a tab transiently.
2. The Registered session is opened and the tab from 1. is overridden (closed) in the process.

Platform information

• Platform (OS): Debian 12 / KDE Plasma
• Version of browser: Firefox 114.0
• Version of Tab Session Manager: 114.0

Additional context

May be developers consider this "by design" or a feature. I consider this a bug because basically it cripples a major browser feature that is equally "by design" and that without warning user. When browser is closed and a web link is clicked in another application, then only the registered session is shown, not the requested site. This is unexpected behavior. that needs at least a warning.