Even if you're in a tribute band, it depends. There's always a smart derrière in the audience (or the band) who says "you played it wrong". Oh right, which version are you thinking of? "Oh the 1973 studio out-take version on a bootleg I've got". ok, I learned it from the well-known live album from 1977. And other parts from the 1988 reunion tour. Would you like your money back?
On the other hand, in my Gary Burton tribute band we just aim for the general vibes
/oneforthejazzers