### 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 
add_text("]");
			pos = brk_end + 1;
		} else if (tag == "lrm") {
			add_text(String::chr(0x200E));
			pos = brk_end + 1;
		} else if (tag == "rlm") {
			add_text(String::chr(0x200F));
			pos = brk_end + 1;
		} else if (tag == "lre") {
			add_text(String::chr(0x202A));
			pos = brk_end + 1;
		} else if (tag == "rle") {
			add_text(String::chr(0x202B));
			pos = brk_end + 1;
		} else if (tag == "lro") {
			add_text(String::chr(0x202D));
			pos = brk_end + 1;
		} else if (tag == "rlo") {
			add_text(String::chr(0x202E));
			pos = brk_end + 1;
		} else if (tag == "pdf") {
			add_text(String::chr(0x202C));
			pos = brk_end + 1;
		} else if (tag == "alm") {
			add_text(String::chr(0x061c));
			pos = brk_end + 1;
		} else if (tag == "lri") {
			add_text(String::chr(0x2066));
			pos = brk_end + 1;
		} else if (tag == "rli") {