### 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)

ERR_FAIL_INDEX_V(p_column, cells.size(), false);
	return cells[p_column].selectable;
}
bool TreeItem::is_selected(int p_column) {
	ERR_FAIL_INDEX_V(p_column, cells.size(), false);
	return cells[p_column].selectable && cells[p_column].selected;
}
void TreeItem::set_as_cursor(int p_column) {
	ERR_FAIL_INDEX(p_column, cells.size());
	if (!tree) {
		return;
	}
	if (tree->select_mode != Tree::SELECT_MULTI) {
		return;
	}
	if (tree->selected_item == this && tree->selected_col == p_column) {
		return;
	}
	tree->selected_item = this;
	tree->selected_col = p_column;
	tree->queue_redraw();
}
void TreeItem::select(int p_column) {
	ERR_FAIL_INDEX(p_column, cells.size());
	_cell_selected(p_column);
}
void TreeItem::deselect(int p_column) {