### Godot version

v4.1.stable.official [970459615]

### System information

Godot v4.1.stable - Windows 10.0.22621 - Vulkan (Forward+) - dedicated NVIDIA GeForce MX330 (NVIDIA; 30.0.15.1169) - 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz (8 Threads)

### Issue description

Calling `RichTextLabel`'s `select_all` method has no visual indicator, but it must have one. 

### Steps to reproduce

- Add `RichTextLabel` node
- Set `selection_enabled` value to be `true`
- Call `$RichTextLabel.select_all() `method in `_ready`

### Minimal reproduction project

[RichTextLabel_bug.zip](https://github.com/godotengine/godot/files/12098913/RichTextLabel_bug.zip)

continue;
						}
						int dif = table->columns[i].width - table->columns[i].max_width;
						if (dif > 0) {
							table_need_fit = true;
							table->columns[i].width = table->columns[i].max_width;
							table->total_width -= dif;
							total_ratio -= table->columns[i].expand_ratio;
						}
					}
					
					remaining_width = available_width - table->total_width;
					if (remaining_width > 0 && total_ratio > 0) {
						for (int i = 0; i < col_count; i++) {
							if (table->columns[i].expand) {
								int dif = table->columns[i].max_width - table->columns[i].width;
								if (dif > 0) {
									int slice = table->columns[i].expand_ratio * remaining_width / total_ratio;
									int incr = MIN(dif, slice);
									table->columns[i].width += incr;
									table->total_width += incr;
								}
							}
						}
					}
				}
				
				idx = 0;
				table->total_height = 0;
				table->rows.clear();