### Godot version

master ([06ccbfe](https://github.com/godotengine/godot/commit/06ccbfe8eec6e840db3df2360dc2804386f940b8))

### System information

PopOS 22.04

### Issue description

Sometimes the doc page is broken when the engine is closed and then restarted.
Closing the doc and opening it again fixes it.

![2023-05-27_22-15](https://github.com/godotengine/godot/assets/3624853/ed202a55-03e8-420a-bc1c-ccfc7f7cd02a)


### Steps to reproduce

- Open a documentation page for any node
- Restart Godot

### Minimal reproduction project

NA

EDIT : Added the commit hash @Calinou 
switch (l.text_buf->get_alignment()) {
			case HORIZONTAL_ALIGNMENT_FILL:
			case HORIZONTAL_ALIGNMENT_LEFT: {
				if (rtl) {
					off.x += width - length;
				}
			} break;
			case HORIZONTAL_ALIGNMENT_CENTER: {
				off.x += Math::floor((width - length) / 2.0);
			} break;
			case HORIZONTAL_ALIGNMENT_RIGHT: {
				if (!rtl) {
					off.x += width - length;
				}
			} break;
		}
		if (line <= dc_lines) {
			if (rtl) {
				off.x -= h_off;
			} else {
				off.x += h_off;
			}
		}
		RID rid = l.text_buf->get_line_rid(line);
		
		off.y += TS->shaped_text_get_ascent(rid);
		
		Array objects = TS->shaped_text_get_objects(rid);
		for (int i = 0; i < objects.size(); i++) {
			Item *it = reinterpret_cast<Item *>((uint64_t)objects[i]);