For R-to-L languages, text that appears highlighted sometimes isn't the text that's actually highlighted

Description of the Issue

If I highlight a portion of the text and press the delete/backspace button, the part that's deleted isn't the text that I highlighted (and which appears highlighted).

Steps to Reproduce the Issue

1. Paste the following text into a new editor:
   הרצליה: 074-6665001 | test1@test1.com
   חיפה: 074-6665000 | test2@test2.com
   תל אביב: 074-6665002 | test3@test3.com

2. Highlight the "650" on any line

3. Type something, or press delete, or press backspace

4. Note that the replaced/deleted text is not the text that had been highlighted.

Expected Behavior

The replaced/deleted text is the text that had been highlighted.

Actual Behavior

For the purposes of the action above (replace/delete), the R-to-L language characters are considered to be in a different order than as displayed. Therefore, the replaced/deleted text is not necessarily the text that had been highlighted.

Debug Information

Notepad++ v7.8.5 (32-bit)
Build time : Mar 4 2020 - 11:04:20
Path : C:\Program Files (x86)\Notepad++\notepad++.exe
Admin mode : OFF
Local Conf mode : OFF
OS Name : Windows 10 Enterprise (64-bit)
OS Version : 1909
OS Build : 18363.720
Plugins : mimeTools.dll NppConverter.dll NppExport.dll

Start by reproducing the selection and delete/backspace behavior in the Notepad++ editor using the supplied Hebrew and numeric sample. Test highlighting "650" on each line and replacing or deleting it. Done means the text replaced or deleted is exactly the text that appears highlighted.