Description of the Issue

When everything in Backup preferences is turned off, if you have an unsaved file and you use the Move to Other View command, a backup file will be created.

Steps to Reproduce the Issue

1. In Preferences > Backup, uncheck Remember current session for next launch and under Backup on save, select None.
2. Open a file on disk.
3. Choose File > New
4. Type something in the new document.
5. Choose View > Move/Clone Current Document > Move to Other View
6. Look in the backup directory and there will be a new file created.

Expected Behavior

A backup file should not have been created.

Actual Behavior

A backup file was created.

Debug Information

Notepad++ v7.5.6 (64-bit)
Build time : Mar 19 2018 - 00:23:17
Path : <folder1><folder2>\npp\notepad++.exe
Admin mode : OFF
Local Conf mode : ON
OS : Windows 10 (64-bit)
Plugins : DSpellCheck.dll mimeTools.dll NppConverter.dll