### 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
ERR_FAIL_COND(rt->backbuffer.is_valid());
	uint32_t mipmaps_required = Image::get_image_required_mipmaps(rt->size.width, rt->size.height, Image::FORMAT_RGBA8);
	RD::TextureFormat tf;
	tf.format = rt->color_format;
	tf.width = rt->size.width;
	tf.height = rt->size.height;
	tf.texture_type = RD::TEXTURE_TYPE_2D;
	tf.usage_bits = RD::TEXTURE_USAGE_COLOR_ATTACHMENT_BIT | RD::TEXTURE_USAGE_STORAGE_BIT | RD::TEXTURE_USAGE_SAMPLING_BIT | RD::TEXTURE_USAGE_CAN_COPY_TO_BIT;
	tf.mipmaps = mipmaps_required;
	rt->backbuffer = RD::get_singleton()->texture_create(tf, RD::TextureView());
	RD::get_singleton()->set_resource_name(rt->backbuffer, "Render Target Back Buffer");
	rt->backbuffer_mipmap0 = RD::get_singleton()->texture_create_shared_from_slice(RD::TextureView(), rt->backbuffer, 0, 0);
	RD::get_singleton()->set_resource_name(rt->backbuffer_mipmap0, "Back Buffer slice mipmap 0");
	{
		Vector<RID> fb_tex;
		fb_tex.push_back(rt->backbuffer_mipmap0);
		rt->backbuffer_fb = RD::get_singleton()->framebuffer_create(fb_tex);
	}
	if (rt->framebuffer_uniform_set.is_valid() && RD::get_singleton()->uniform_set_is_valid(rt->framebuffer_uniform_set)) {
		
		RD::get_singleton()->free(rt->framebuffer_uniform_set);
		rt->framebuffer_uniform_set = RID();
	}
	
	for (uint32_t i = 1; i < mipmaps_required; i++) {