Moving a file to another folder causes it to be duplicated in the dialogue editor

[gatomesa]

Describe the bug If you have a file open in the editor, and move the file to another folder, the editor duplicates the files. You now have two files in the editor's file list, each of which can be edited independently. This can cause you to edit the now-nonexistent file instead of the real one.

Affected version

• Dialogue Manager version: 2.40.0
• Godot version: 4.2.2

To Reproduce Steps to reproduce the behavior:

1. Create a dialogue file and open it in the dialogue editor.
2. Move this file to another folder.

Expected behavior The dialogue editor shows only one file, and changing it updates the file that exists in the file system.