Description of the Issue

Notepad++ installer doesn't update the files that are already present in the C:\Program Files\Notepad++\autoCompletion folder, even if the installation of the “Auto-completion Files” component was ticked during install.

Example Steps to Reproduce the Issue

1. Clean install Notepad++ v8.5.6 (without changing anything during installation, maybe apart unselecting the “Run Notepad++ v8.5.6” at the end of the installation)
2. Go to C:\Program Files\Notepad++\autoCompletion and check the modification date of the css.xml file –
   it should say May ‎27, ‎2021, ‏‎12:57:56 AM.
3. Now install Notepad++ v8.6.3 (on top of the existing installation)
4. After the installation is done, go back to C:\Program Files\Notepad++\autoCompletion and check the modification date of the same file again – the date should be still the same.
5. Delete the css.xml file and run the Notepad++ installer for the version 8.6.3 (same default settings), go back to the same location and check the css.xml file – now the modification date should update and say February ‎11, ‎2024, ‏‎5:43:26 PM.

Expected Behavior

Notepad++ installer should update the files found in the autoCompletion directory if the installation of the “Auto-completion Files” component was selected during install.

Actual Behavior

Notepad++ installer adds only the files that were missing from the autoCompletion directory.

Debug Information

Notepad++ v8.6.3   (64-bit)
Build time : Feb 16 2024 - 20:08:05
Path : C:\Program Files\Notepad++\notepad++.exe
Command Line : 
Admin mode : ON
Local Conf mode : OFF
Cloud Config : OFF
OS Name : Windows 10 Pro (64-bit)
OS Version : 22H2
OS Build : 19045.4046
Current ANSI codepage : 1250
Plugins : 
    ComparePlus (1.1)
    mimeTools (3.1)
    NppConverter (4.6)
    NppExport (0.4)
    PoorMansTSqlFormatterNppPlugin (1.6.13.31508)