### 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
Transform3D xf_zero;
	xf_zero.basis.set_zero();
	if (!selection.active) {
		RenderingServer::get_singleton()->instance_set_transform(selection_instance, xf_zero);
		for (int i = 0; i < 3; i++) {
			RenderingServer::get_singleton()->instance_set_transform(selection_level_instance[i], xf_zero);
		}
		return;
	}
	Transform3D xf;
	xf.scale((Vector3(1, 1, 1) + (selection.end - selection.begin)) * node->get_cell_size());
	xf.origin = selection.begin * node->get_cell_size();
	RenderingServer::get_singleton()->instance_set_transform(selection_instance, node->get_global_transform() * xf);
	for (int i = 0; i < 3; i++) {
		if (i != edit_axis || (edit_floor[edit_axis] < selection.begin[edit_axis]) || (edit_floor[edit_axis] > selection.end[edit_axis] + 1)) {
			RenderingServer::get_singleton()->instance_set_transform(selection_level_instance[i], xf_zero);
		} else {
			Vector3 scale = (selection.end - selection.begin + Vector3(1, 1, 1));