Continuity Error from Blood Sweat and Circuits

 

There is a continuity Error in the Episode "Blood Sweat and circuits" from season 2. In the Cafeteria scene where Mrs Berg is trying to get to grips with the computer manual. Mrs Berg is sitting alone, reading the manual out loud, there is an extra wearing a blue shirt and brown waistcoat sat at the same table.  Miss Sherwood arrives and starts to talk to Mrs Berg and the extra gets up to leave. However, in the next shot we have a close up of Mrs Berg and the extra who is still sat down gets up to leave again.

Thanks to Brian for sending this to me.