Binomial tree : Treatment of coupon payment at Time 0 (Schwesser and Curriculum differ

Please can someone assist. The curriculum doesn’t include coupon payments at Time 0 whereas Schweser under Reading 33 (Arbitrage Free Valuation Framemork) 33d and 33f include coupon payments at time 0 and the question banks. Am I missing something? Please help.

If you buy a bond on a coupon date, you don’t get the coupon payment.