### Godot version

4.0 Beta 10

### System information

Windows 10

### Issue description

when picking tiles from a gridmap and you have a search filter applied, it often doesn't do anything, instead I get an index out of bounds error in the console
`scene/gui/item_list.cpp:424 - Index p_current = 8 is out of bounds (items.size() = 4).`

### Steps to reproduce

1. Open a project using a gridmap like the platformer demo, or create one.
2. Search for specific tiles inside the tile selection.
3. Try to pick a tile inside the 3D viewport with that you want to paint (maybe you don't want to reset the filter and do a long search there)

In some cases it works, but mostly it doesn't work (depending on the tile you picked and what you searched for)
Also I am not sure, but I have the feeling that in a few cases it picks the wrong tile, instead of throwing an error

### Minimal reproduction project

Any project that uses a gridmap, for example the platformer demo from the demo projects repo
switch (p_what) {
		case EditorSettings::NOTIFICATION_EDITOR_SETTINGS_CHANGED: {
			switch ((int)EDITOR_GET("editors/grid_map/editor_side")) {
				case 0: { 
					Node3DEditor::get_singleton()->move_control_to_left_panel(grid_map_editor);
				} break;
				case 1: { 
					Node3DEditor::get_singleton()->move_control_to_right_panel(grid_map_editor);
				} break;
			}
		} break;
	}
}
void GridMapEditorPlugin::edit(Object *p_object) {
	grid_map_editor->edit(Object::cast_to<GridMap>(p_object));
}
bool GridMapEditorPlugin::handles(Object *p_object) const {
	return p_object->is_class("GridMap");
}
void GridMapEditorPlugin::make_visible(bool p_visible) {