Sessions don't get extended internally from AJAX requests

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Describe the Bug

If you have a website that uses extendable sessions, and background AJAX requests, then these sessions only have their expiries updated on the frontend - but not the backend.

This occurs because the data of the session isn't changed, so the save/expiry-update doesn't trigger. This would also occur if you uses sessions without any session data as well.

Steps To Reproduce

1. Have a server using extendable sessions - duration of 2mins
2. Either don't set any session data, or have a simple AJAX request on the site to get data
3. Refresh the page a few times, or let the AJAC requests run a few times
4. Eventually the session will expire after a normal 2mins, rather than being extended

Expected Behavior

The sessions should be extended on the backend, as well as the frontend.

Platform

• OS: Windows
• Browser: Chrome
• Versions:
  • Pode: v2.0.3
  • PowerShell: PS5.1