### Godot version

4.1.1.stable, 4.2.dev (2282fc5de)

### System information

Arch Linux - X11 - GLES3 (Compatibility) - NVIDIA GeForce RTX 3060 Ti (nvidia; 535.104.05) - 13th Gen Intel(R) Core(TM) i5-13400F (16 Threads)

### Issue description

When using Compatibility renderer, adjusting the Alpha component of clear color affects 2D editor content.

This does not happen when using Forward+ or Mobile renderer. Does not affect 3D editor and the running game.


https://github.com/godotengine/godot/assets/372476/e398522e-590a-4832-959f-ea8ba8e71c5d



### Steps to reproduce

1. Create a project using Compatibility renderer.
2. Adjust the clear color's alpha component in Project Settings.

### Minimal reproduction project

N/A
}
			} break;
			case Item::Command::TYPE_MESH:
			case Item::Command::TYPE_MULTIMESH:
			case Item::Command::TYPE_PARTICLES: {
				
				_new_batch(r_batch_broken);
				Color modulate(1, 1, 1, 1);
				state.canvas_instance_batches[state.current_batch_index].shader_variant = CanvasShaderGLES3::MODE_ATTRIBUTES;
				if (c->type == Item::Command::TYPE_MESH) {
					const Item::CommandMesh *m = static_cast<const Item::CommandMesh *>(c);
					state.canvas_instance_batches[state.current_batch_index].tex = m->texture;
					_update_transform_2d_to_mat2x3(base_transform * draw_transform * m->transform, state.instance_data_array[r_index].world);
					modulate = m->modulate;
				} else if (c->type == Item::Command::TYPE_MULTIMESH) {
					const Item::CommandMultiMesh *mm = static_cast<const Item::CommandMultiMesh *>(c);
					state.canvas_instance_batches[state.current_batch_index].tex = mm->texture;
					state.canvas_instance_batches[state.current_batch_index].shader_variant = CanvasShaderGLES3::MODE_INSTANCED;
					if (GLES3::MeshStorage::get_singleton()->multimesh_uses_colors(mm->multimesh)) {
						state.instance_data_array[r_index].flags |= FLAGS_INSTANCING_HAS_COLORS;
					}
					if (GLES3::MeshStorage::get_singleton()->multimesh_uses_custom_data(mm->multimesh)) {
						state.instance_data_array[r_index].flags |= FLAGS_INSTANCING_HAS_CUSTOM_DATA;
					}
				} else if (c->type == Item::Command::TYPE_PARTICLES) {
					GLES3::ParticlesStorage *particles_storage = GLES3::ParticlesStorage::get_singleton();
					GLES3::TextureStorage *texture_storage = GLES3::TextureStorage::get_singleton();
					const Item::CommandParticles *pt = static_cast<const Item::CommandParticles *>(c);
					RID particles = pt->particles;
					state.canvas_instance_batches[state.current_batch_index].tex = pt->texture;