message: ensure no framebuffer is bound in waitForGpuCommandsCompleteSync
diff: @@ -107,6 +107,7 @@ function waitForGpuCommandsComplete(gl: GLRenderingContext): Promise<void> {
  }
  function waitForGpuCommandsCompleteSync(gl: GLRenderingContext): void {
  + gl.bindFramebuffer(gl.FRAMEBUFFER, null)
  gl.readPixels(0, 0, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, tmpPixel)
  }
  