### Godot version

4.1 dev3

### System information

Windows 10.0.19045 - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 1060 (NVIDIA; 30.0.15.1403) - Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz (8 Threads)

### Issue description

Trying to move a folder results in moving error and it's not moved.
Regression from #75330

A fix already exists, but I'm opening an issue so it's not lost (the PR isn't ready and not very active).

### Steps to reproduce

1. Add 2 folders in filesystem
2. Move one folder into another one

### Minimal reproduction project

N/A
if (is_layout_rtl()) {
				button_hist_next->set_icon(get_theme_icon(SNAME("Back"), SNAME("EditorIcons")));
				button_hist_prev->set_icon(get_theme_icon(SNAME("Forward"), SNAME("EditorIcons")));
			} else {
				button_hist_next->set_icon(get_theme_icon(SNAME("Forward"), SNAME("EditorIcons")));
				button_hist_prev->set_icon(get_theme_icon(SNAME("Back"), SNAME("EditorIcons")));
			}
			if (file_list_display_mode == FILE_LIST_DISPLAY_LIST) {
				button_file_list_display_mode->set_icon(get_theme_icon(SNAME("FileThumbnail"), SNAME("EditorIcons")));
			} else {
				button_file_list_display_mode->set_icon(get_theme_icon(SNAME("FileList"), SNAME("EditorIcons")));
			}
			tree_search_box->set_right_icon(get_theme_icon(SNAME("Search"), SNAME("EditorIcons")));
			tree_search_box->set_clear_button_enabled(true);
			tree_button_sort->set_icon(get_theme_icon(SNAME("Sort"), SNAME("EditorIcons")));
			file_list_search_box->set_right_icon(get_theme_icon(SNAME("Search"), SNAME("EditorIcons")));
			file_list_search_box->set_clear_button_enabled(true);
			file_list_button_sort->set_icon(get_theme_icon(SNAME("Sort"), SNAME("EditorIcons")));
			
			bool new_always_show_folders = bool(EDITOR_GET("docks/filesystem/always_show_folders"));
			if (new_always_show_folders != always_show_folders) {
				always_show_folders = new_always_show_folders;
				_update_file_list(true);
			}
			
			_update_display_mode();
		} break;
	}
}
void FileSystemDock::_tree_multi_selected(Object *p_item, int p_column, bool p_selected) {