Ok dumb question, but I was going through some reference pics and this popped into my head. When Luke first encounters Yoda in his camp on Dagobah, Yoda takes a lamp and R2 tries taking it back. Doesn't R2 know who Yoda is? He should, but I can't see R2 playing tug of war with a Jedi Master. I'm assuming Anakin kept R2 with him at the Jedi Temple since he used R2 in his fighter. It would make sense that R2 would certainly know Yoda. Some I'm wondering if this is just an example of continuity errors since Lucas didn't connect R2 with Anakin.