### 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_COND_V(blocked > 0, nullptr);
	TreeItem *ti = nullptr;
	if (p_parent) {
		ERR_FAIL_COND_V_MSG(p_parent->tree != this, nullptr, "A different tree owns the given parent");
		ti = p_parent->create_child(p_index);
	} else {
		if (!root) {
			
			ti = memnew(TreeItem(this));
			ERR_FAIL_NULL_V(ti, nullptr);
			ti->cells.resize(columns.size());
			ti->is_root = true;
			root = ti;
		} else {
			
			ti = create_item(root, p_index);
		}
	}
	return ti;
}
TreeItem *Tree::get_root() const {