Description of the Issue

When reloading a changed file, Notepad++ does not detect a change in Windows/Unix line ending type (LF/CR LF)

Steps to Reproduce the Issue

1. Create a file, i.e. c:\1\2.txt and type some text
2. Change the line endings to Unix and save
3. Use another text editor to edit the file with Windows line endings. For example use cmd.exe to do "echo blah > c:\1\2.txt"
4. Notepad++ detects the file was changed, but when it reloads it the file is still shown as using Unix line endings
5. Only closing the file and reopening will show it correctly as a file with Windows line endings

Expected Behavior

Notepad++ would detect the changed line ending types

Actual Behavior

The line ending type was not updated

Debug Information

Notepad++ v7.5.3 (64-bit)
Build time : Dec 5 2017 - 10:47:54
Path : C:\Program Files\Notepad++\notepad++.exe
Admin mode : OFF
Local Conf mode : OFF
OS : Windows 10 (64-bit)
Plugins : DSpellCheck.dll mimeTools.dll NppConverter.dll