### 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 
}
						if (subtag_b.size() == 1) {
							Color color1 = Color::from_string(subtag_a[1], fallback_color);
							set_cell_row_background_color(color1, color1);
						}
					} else if (subtag_a[0] == "padding") {
						Vector<String> subtag_b = subtag_a[1].split(",");
						_normalize_subtags(subtag_b);
						if (subtag_b.size() == 4) {
							set_cell_padding(Rect2(subtag_b[0].to_float(), subtag_b[1].to_float(), subtag_b[2].to_float(), subtag_b[3].to_float()));
						}
					}
				}
			}
			pos = brk_end + 1;
			tag_stack.push_front("cell");
		} else if (tag == "u") {
			
			push_underline();
			pos = brk_end + 1;
			tag_stack.push_front(tag);
		} else if (tag == "s") {
			
			push_strikethrough();
			pos = brk_end + 1;
			tag_stack.push_front(tag);
		} else if (tag == "lb") {
			add_text("[");
			pos = brk_end + 1;
		} else if (tag == "rb") {