### 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)

if (!tree) {
		return;
	}
	set_collapsed(p_collapsed);
	TreeItem *child = get_first_child();
	while (child) {
		child->set_collapsed_recursive(p_collapsed);
		child = child->get_next();
	}
}
bool TreeItem::_is_any_collapsed(bool p_only_visible) {
	TreeItem *child = get_first_child();
	
	while (child) {
		if (child->get_first_child() && child->is_collapsed() && (!p_only_visible || (child->is_visible() && child->get_visible_child_count()))) {
			return true;
		}
		child = child->get_next();
	}
	child = get_first_child();
	
	while (child) {
		if (child->get_first_child() && (!p_only_visible || (child->is_visible() && child->get_visible_child_count())) && child->_is_any_collapsed(p_only_visible)) {
			return true;
		}
		child = child->get_next();
	}
	return false;
}
bool TreeItem::is_any_collapsed(bool p_only_visible) {