### 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)

break;
					}
				}
				if (!root || (!root->get_first_child() && hide_root)) {
					break;
				}
				click_handled = false;
				pressing_for_editor = false;
				propagate_mouse_activated = false;
				int x_limit = get_size().width - theme_cache.panel_style->get_minimum_size().width;
				if (v_scroll->is_visible()) {
					x_limit -= v_scroll->get_minimum_size().width;
				}
				cache.rtl = is_layout_rtl();
				blocked++;
				propagate_mouse_event(pos + theme_cache.offset, 0, 0, x_limit + theme_cache.offset.width, mb->is_double_click(), root, mb->get_button_index(), mb);
				blocked--;
				if (pressing_for_editor) {
					pressing_pos = mb->get_position();
					if (rtl) {
						pressing_pos.x = get_size().width - pressing_pos.x;
					}
				}
				if (mb->get_button_index() == MouseButton::RIGHT) {
					break;
				}
				if (drag_touching) {
					set_physics_process_internal(false);
					drag_touching_deaccel = false;
					drag_touching = false;