Merge f3b7c05d on remote branch

        }

    } else if (!rect.isEmpty()) {

        dirtyLayer(rect.left, rect.top, rect.right, rect.bottom);

        save(0);

        // the layer contains screen buffer content that shouldn't be alpha modulated

        // (and any necessary alpha modulation was handled drawing into the layer)

        mSnapshot->alpha = 1.0f;

        composeLayerRect(layer, rect, true);

        restore();

    }

    dirtyClip();