### Godot version

4.2.dev3

### System information

Godot v4.2.dev3 - Arch Linux #0~20230811.g489fabdc SMP PREEMPT_DYNAMIC Sat Aug 12 02:04:20 UT - X11 - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 1650 (nvidia; 535.98) - Intel(R) Core(TM) i5-9300H CPU @ 2.40GHz (8 Threads)

### Issue description

After turning on 2d hdr and font msdf at the same time, there is a problem with ui text rendering.

2d hdr off:
![图片](https://github.com/godotengine/godot/assets/52148221/37074fde-a0ce-4d3f-8bfc-dcf3f910cb12)
2d hdr on:
![图片](https://github.com/godotengine/godot/assets/52148221/b858899c-e08f-4bac-b0d6-4385d9a46114)


### Steps to reproduce

1. Open msdf for default font or custom font.
2. Turn on 2d hdr.
3. Add a Label node and enter text, the text rendering is destroyed.

### Minimal reproduction project

N/A
CanvasMaterialData *material_data = memnew(CanvasMaterialData);
	material_data->shader_data = p_shader;
	
	return material_data;
}
void RendererCanvasRenderRD::set_time(double p_time) {
	state.time = p_time;
}
void RendererCanvasRenderRD::update() {
}
RendererCanvasRenderRD::RendererCanvasRenderRD() {
	RendererRD::TextureStorage *texture_storage = RendererRD::TextureStorage::get_singleton();
	RendererRD::MaterialStorage *material_storage = RendererRD::MaterialStorage::get_singleton();
	{ 
		default_samplers.default_filter = RS::CANVAS_ITEM_TEXTURE_FILTER_LINEAR;
		default_samplers.default_repeat = RS::CANVAS_ITEM_TEXTURE_REPEAT_DISABLED;
	}
	{ 
		String global_defines;
		uint64_t uniform_max_size = RD::get_singleton()->limit_get(RD::LIMIT_MAX_UNIFORM_BUFFER_SIZE);
		if (uniform_max_size < 65536) {
			
			state.max_lights_per_render = 64;
			global_defines += "#define MAX_LIGHTS 64\n";
		} else {
			state.max_lights_per_render = DEFAULT_MAX_LIGHTS_PER_RENDER;
			global_defines += "#define MAX_LIGHTS " + itos(DEFAULT_MAX_LIGHTS_PER_RENDER) + "\n";
		}