Description of the Issue

When closing a XML tag, Notepad++ crashes as I type the last letter of the tag name. Happens in v8.3. If the file is saved in an older version, and opened in v8.3, Notepad++ will crash. Can cause a crash on startup.

Steps to Reproduce the Issue

1. Create a new file
2. Set the language to XML
3. Type in:

<test>
</test

4. The program will crash as you type in the last letter

Expected Behavior

Notepad++ should highlight the opening tag, as in v8.2.1

Actual Behavior

Notepad++ crashes

Debug Information

Notepad++ v8.3 (64-bit)
Build time : Feb 3 2022 - 03:39:05
Path : C:\Program Files\Notepad++\notepad++.exe
Command Line :
Admin mode : OFF
Local Conf mode : OFF
Cloud Config : OFF
OS Name : Windows 11 (64-bit)
OS Version : 2009
OS Build : 22000.434
Current ANSI codepage : 1252
Plugins : mimeTools.dll NppConverter.dll NppExport.dll