### Godot version

4.2 Stable

### System information

Linux

### Issue description

Calling TreeItem set_text() on a TreeItem that was removed via remove_child() causes debugging to end and the application to close without any error message.

### Steps to reproduce

Run the included example to get the debugger to crash. Comment out "treeItem.remove_child(subTreeItem)" for normal behaviour. 

### Minimal reproduction project

[treeItemCrash.zip](https://github.com/godotengine/godot/files/13534005/treeItemCrash.zip)

select_mode = p_mode;
}
Tree::SelectMode Tree::get_select_mode() const {
	return select_mode;
}
void Tree::deselect_all() {
	if (root) {
		TreeItem *item = root;
		while (item) {
			if (select_mode == SELECT_ROW) {
				item->deselect(0);
			} else {
				for (int i = 0; i < columns.size(); i++) {
					item->deselect(i);
				}
			}
			TreeItem *prev_item = item;
			item = get_next_selected(root);
			ERR_FAIL_COND(item == prev_item);
		}
	}
	selected_item = nullptr;
	selected_col = -1;
	queue_redraw();
}
bool Tree::is_anything_selected() {