### Godot version

v4.2.dev4.official [549fcce5f]

### System information

Windows 10

### Issue description

`scene/main/node.cpp:1757 - Parameter "p_node" is null.` when attempting to type after using find function. Does not happen in 4.2dev3.

https://github.com/godotengine/godot/assets/3820082/4a2818f7-cc3b-4b46-a0b1-5bc6a85b4abc


### Steps to reproduce

1) Open any script in the script editor
2) Ctrl+F to select some text that exists in the script
3) Hit escape to re-focus the script editor without placing the caret
4) Attempt to type



### Minimal reproduction project

[find-mrp.zip](https://github.com/godotengine/godot/files/12555561/find-mrp.zip)

}
		} break;
		case HORIZONTAL_ALIGNMENT_CENTER: {
			if (!Math::is_zero_approx(scroll_offset)) {
				x_ofs = style->get_offset().x;
			} else {
				x_ofs = MAX(style->get_margin(SIDE_LEFT), int(get_size().width - (text_width)) / 2);
			}
		} break;
		case HORIZONTAL_ALIGNMENT_RIGHT: {
			if (rtl) {
				x_ofs = style->get_offset().x;
			} else {
				x_ofs = MAX(style->get_margin(SIDE_LEFT), int(get_size().width - style->get_margin(SIDE_RIGHT) - (text_width)));
			}
		} break;
	}
	bool using_placeholder = text.is_empty() && ime_text.is_empty();
	bool display_clear_icon = !using_placeholder && is_editable() && clear_button_enabled;
	if (right_icon.is_valid() || display_clear_icon) {
		Ref<Texture2D> r_icon = display_clear_icon ? theme_cache.clear_icon : right_icon;
		if (alignment == HORIZONTAL_ALIGNMENT_CENTER) {
			if (Math::is_zero_approx(scroll_offset)) {
				x_ofs = MAX(style->get_margin(SIDE_LEFT), int(get_size().width - text_width - r_icon->get_width() - style->get_margin(SIDE_RIGHT) * 2) / 2);
			}
		} else {
			x_ofs = MAX(style->get_margin(SIDE_LEFT), x_ofs - r_icon->get_width() - style->get_margin(SIDE_RIGHT));
		}
	}
	Vector2 ret;