Question:
One is eating meat and drinking wine during shalosh seudos during the Nine Days. One interrupts the meal to say Baruch Hamadvil and performs a melacha. May one continue to eat meat and drink wine until benching?
Answer:
Depends on the sugya כיון דאשתרי אשתרי He should refrain from doing so because now he can’t say “retzei” in benching, but if he did, cannot continue with meat and wine.
Sources:
Chulin 17a, ibid Rosh