### Godot version

v4.0.beta17.mono.official [c40020513]

### System information

Window 11, Forward+, GTX 1060

### Issue description

Adding two theme variations in a row result to a  crash.

https://user-images.githubusercontent.com/93253123/217037249-1ce1d56d-beb6-4435-83ad-9f8a07fe0e96.mp4



### Steps to reproduce

1. Create a project.
2. Create a theme.
3. Double click to go in the theme editor.
4. Click on manage items buttons.
5. In the add type field type a name to add a type.
6. type another name to add a second type.
7. Crash.

### Minimal reproduction project

[ThemeVariationCrash.zip](https://github.com/godotengine/godot/files/10665863/ThemeVariationCrash.zip)

_resize_dialog_confirmed();
}
void EditorInspectorArray::_setup() {
	
	count = _get_array_count();
	begin_array_index = page * page_length;
	end_array_index = MIN(count, (page + 1) * page_length);
	max_page = MAX(0, count - 1) / page_length;
	array_elements.resize(MAX(0, end_array_index - begin_array_index));
	if (page < 0 || page > max_page) {
		WARN_PRINT(vformat("Invalid page number %d", page));
		page = CLAMP(page, 0, max_page);
	}
	Ref<Font> numbers_font;
	int numbers_min_w = 0;
	if (numbered) {
		numbers_font = get_theme_font(SNAME("bold"), SNAME("EditorFonts"));
		int digits_found = count;
		String test;
		while (digits_found) {
			test += "8";
			digits_found /= 10;
		}
		numbers_min_w = numbers_font->get_string_size(test).width;
	}
	for (int i = 0; i < (int)array_elements.size(); i++) {
		ArrayElement &ae = array_elements[i];