### 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 
alignment = HORIZONTAL_ALIGNMENT_LEFT;
						} else if (subtag_a[1] == "c" || subtag_a[1] == "center") {
							alignment = HORIZONTAL_ALIGNMENT_CENTER;
						} else if (subtag_a[1] == "r" || subtag_a[1] == "right") {
							alignment = HORIZONTAL_ALIGNMENT_RIGHT;
						} else if (subtag_a[1] == "f" || subtag_a[1] == "fill") {
							alignment = HORIZONTAL_ALIGNMENT_FILL;
						}
					} else if (subtag_a[0] == "dir" || subtag_a[0] == "direction") {
						if (subtag_a[1] == "a" || subtag_a[1] == "auto") {
							dir = Control::TEXT_DIRECTION_AUTO;
						} else if (subtag_a[1] == "l" || subtag_a[1] == "ltr") {
							dir = Control::TEXT_DIRECTION_LTR;
						} else if (subtag_a[1] == "r" || subtag_a[1] == "rtl") {
							dir = Control::TEXT_DIRECTION_RTL;
						}
					} else if (subtag_a[0] == "lang" || subtag_a[0] == "language") {
						lang = subtag_a[1];
					} else if (subtag_a[0] == "st" || subtag_a[0] == "bidi_override") {
						if (subtag_a[1] == "d" || subtag_a[1] == "default") {
							st_parser_type = TextServer::STRUCTURED_TEXT_DEFAULT;
						} else if (subtag_a[1] == "u" || subtag_a[1] == "uri") {
							st_parser_type = TextServer::STRUCTURED_TEXT_URI;
						} else if (subtag_a[1] == "f" || subtag_a[1] == "file") {
							st_parser_type = TextServer::STRUCTURED_TEXT_FILE;
						} else if (subtag_a[1] == "e" || subtag_a[1] == "email") {
							st_parser_type = TextServer::STRUCTURED_TEXT_EMAIL;
						} else if (subtag_a[1] == "l" || subtag_a[1] == "list") {
							st_parser_type = TextServer::STRUCTURED_TEXT_LIST;
						} else if (subtag_a[1] == "n" || subtag_a[1] == "gdscript") {