### Godot version

v4.1.rc2.official [46424488e]

### System information

Godot v4.1.rc2 - Linux Mint 20 (Ulyana) - Vulkan (Forward+) - dedicated NVIDIA GeForce RTX 2060 SUPER (nvidia; 515.105.01) - Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz (8 Threads)

### Issue description

Dragging and dropping a file to a new position inside its current folder, or onto the icon for its current folder - when that folder is the project root folder :res// - will be treated as though you were dropping a different file with the same name.

Expectation: for nothing to happen.

Also tried it in 4.0.3 and 4.1-dev3, where it behaves as expected.

https://github.com/godotengine/godot/assets/64640811/90de1120-dd92-41b8-b202-db77c343103a

### Steps to reproduce

1. New or existing project.
2. Click and drag a file in :res// in FileSystem dock.
3. Drop the file back into :res//.
4. Be prompted to overwrite or rename.

### Minimal reproduction project

N/A
}
		}
	} else {
		
		if (directory.ends_with("/") && directory != "res://") {
			directory = directory.substr(0, directory.length() - 1);
		}
		EditorFileSystemDirectory *efd = EditorFileSystem::get_singleton()->get_filesystem_path(directory);
		if (!efd) {
			directory = current_path.get_base_dir();
			file = current_path.get_file();
			efd = EditorFileSystem::get_singleton()->get_filesystem_path(directory);
		}
		if (!efd) {
			return;
		}
		if (searched_string.length() > 0) {
			
			
			_search(EditorFileSystem::get_singleton()->get_filesystem(), &file_list, 10000);
		} else {
			if (display_mode == DISPLAY_MODE_TREE_ONLY || always_show_folders) {
				
				if (directory != "res://") {
					files->add_item("..", folder_icon, true);
					String bd = directory.get_base_dir();
					if (bd != "res://" && !bd.ends_with("/")) {
						bd += "/";
					}
					files->set_item_metadata(-1, bd);