### Godot version

4.0rc1 gl_compatibility only.

### System information

Windows 10, Nvidia 527.56 RTX3090, gl_compatibility
OpenGL API 3.3.0 NVIDIA 527.56 - Compatibility

### Issue description

Assigning a `CanvasItemMatrial` with `blend_mode = BLEND_MODE_SUB` in opengl causes the entire editor to turn black and break, even if later unassigned.

In case it matters, I'm using Single Window Mode in the editor.

### Steps to reproduce

1. Open the attached Project. Make sure it is using **Compatibility** on the top right.
2. On the root "Level" node, click the `Use Standard` checkbox which runs the tool script (it actually sets a CanvasItemMaterial, not standard. the checkbox was badly named). The editor turns black.
3. Without moving the mouse, click again to toggle this material off and return to a ShaderMaterial. The editor is still black / broken.
4. Press Ctrl-S to save the scene so you aren't bombarded with an invisible save dialog.
5. Close the editor.

If you edit the script and try other blend_mode values, this issue does not happen.

### Minimal reproduction project

[black_screen_test.zip](https://github.com/godotengine/godot/files/10689627/black_screen_test.zip)

Vector<uint8_t> index_buffer;
		index_buffer.resize(p_indices.size() * sizeof(int32_t));
		{
			uint8_t *w = index_buffer.ptrw();
			memcpy(w, p_indices.ptr(), sizeof(int32_t) * p_indices.size());
		}
		glGenBuffers(1, &pb.index_buffer);
		glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, pb.index_buffer);
		glBufferData(GL_ELEMENT_ARRAY_BUFFER, p_indices.size() * 4, index_buffer.ptr(), GL_STATIC_DRAW);
		pb.count = p_indices.size();
	}
	glBindVertexArray(0);
	glBindBuffer(GL_ARRAY_BUFFER, 0);
	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
	PolygonID id = polygon_buffers.last_id++;
	polygon_buffers.polygons[id] = pb;
	return id;
}
void RasterizerCanvasGLES3::free_polygon(PolygonID p_polygon) {
	PolygonBuffers *pb_ptr = polygon_buffers.polygons.getptr(p_polygon);
	ERR_FAIL_COND(!pb_ptr);
	PolygonBuffers &pb = *pb_ptr;
	if (pb.index_buffer != 0) {
		glDeleteBuffers(1, &pb.index_buffer);
	}
	glDeleteVertexArrays(1, &pb.vertex_array);
	glDeleteBuffers(1, &pb.vertex_buffer);
	polygon_buffers.polygons.erase(p_polygon);
}
void RasterizerCanvasGLES3::_allocate_instance_data_buffer() {