Description of the Issue

When you open a document in NotePad++ 8.4 and click HELP ABOUT, every instance of the first word of the current document is highlighted. This behavior did NOT occur in 8.3.3 and previous versions.

Steps to Reproduce the Issue

1. Open NotePad++.
2. Press CTRL + HOME to move the cursor to the beginning of the file.
3. Click HELP | ABOUT.
4. Notice that every instance of the first word is highlighted in the current document
5. Re-Install 8.3.3 and repeat steps 1-3; step 4 does NOT happen.

Expected Behavior

I would not expect NotePad++ to highlight every instance of the first word of my document

Actual Behavior

NotePad++ highlights every instance of the first word in the current document.

Debug Information

Notepad++ v8.4 (64-bit)
Build time : Apr 20 2022 - 03:31:06
Path : C:\Program Files\Notepad++\notepad++.exe
Command Line :
Admin mode : OFF
Local Conf mode : OFF
Cloud Config : OFF
OS Name : Windows 10 Enterprise (64-bit)
OS Version : 2009
OS Build : 19042.1645
Current ANSI codepage : 1252
Plugins : ComparePlugin.dll mimeTools.dll NppConverter.dll NppExport.dll