Description of the Issue

When reopening Notepad++ (with session snapshot enabled) the selected file (tab) at closing time is not reselected. It seems that in the session snapshot is not included anymore the "working" tab, so at reopening time the first tab is selected by default.
This was working in 7.4.x versions (i have 7.4.2 and is working) but in 7.5.x is not working any more.

Steps to Reproduce the Issue

1. Open Notepad++
2. Open some files (so we have some tabs)
3. Select last opened file (tab) (but the bug can be reproduced with any tab)
4. Close Notepad++ (Preferences/Backup/Session snapshot -> is enabled)
5. Reopen Notepad++

Expected Behavior

The tab selected at step 3 should be selected after reopening.

Actual Behavior

The first tab is always selected after reopening.

Debug Information

Notepad++ v7.5.8 (64-bit)
Build time : Jul 23 2018 - 02:06:36
Path : C:\Program Files\Notepad++\notepad++.exe
Admin mode : OFF
Local Conf mode : OFF
OS : Windows 10 (64-bit)
Plugins : DSpellCheck.dll mimeTools.dll NppConverter.dll