Maybe you are right, but it is unlikely that it would cause an FT any problems when he/she left China. I exited Guangzhou airport late last year with an RP that I had been told five times ( by my previous university ) had been cancelled.

I would even say that this uni was harassing me and trying to scare me. I basically told the FAO at the uni to f..k off, I was sick of them calling me, constantly annoying me, asking me where I was in China, when I would be leaving. I went back to Australia and then when I returned to China in February this year I changed my mobile phone number.