### 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 
bool skip = (trim_chars && l.char_offset + glyphs[i].end > visible_characters) || (trim_glyphs_ltr && (r_processed_glyphs >= visible_glyphs)) || (trim_glyphs_rtl && (r_processed_glyphs < total_glyphs - visible_glyphs));
				if (txt_visible) {
					if (!skip) {
						if (frid != RID()) {
							TS->font_draw_glyph(frid, ci, glyphs[i].font_size, p_ofs + fx_offset + off, gl, font_color);
						} else if (((glyphs[i].flags & TextServer::GRAPHEME_IS_VIRTUAL) != TextServer::GRAPHEME_IS_VIRTUAL) && ((glyphs[i].flags & TextServer::GRAPHEME_IS_EMBEDDED_OBJECT) != TextServer::GRAPHEME_IS_EMBEDDED_OBJECT)) {
							TS->draw_hex_code_box(ci, glyphs[i].font_size, p_ofs + fx_offset + off, gl, font_color);
						}
					}
					r_processed_glyphs++;
				}
				if (skip) {
					
					if (ul_started) {
						ul_started = false;
						float y_off = TS->shaped_text_get_underline_position(rid);
						float underline_width = MAX(1.0, TS->shaped_text_get_underline_thickness(rid) * theme_cache.base_scale);
						draw_line(ul_start + Vector2(0, y_off), p_ofs + Vector2(off.x, off.y + y_off), ul_color, underline_width);
					}
					if (dot_ul_started) {
						dot_ul_started = false;
						float y_off = TS->shaped_text_get_underline_position(rid);
						float underline_width = MAX(1.0, TS->shaped_text_get_underline_thickness(rid) * theme_cache.base_scale);
						draw_dashed_line(dot_ul_start + Vector2(0, y_off), p_ofs + Vector2(off.x, off.y + y_off), dot_ul_color, underline_width, MAX(2.0, underline_width * 2));
					}
					if (st_started) {
						st_started = false;
						float y_off = -TS->shaped_text_get_ascent(rid) + TS->shaped_text_get_size(rid).y / 2;
						float underline_width = MAX(1.0, TS->shaped_text_get_underline_thickness(rid) * theme_cache.base_scale);
						draw_line(st_start + Vector2(0, y_off), p_ofs + Vector2(off.x, off.y + y_off), st_color, underline_width);