Hilchos Brochos Perek Gimmel

5776, 3:9. Mezonos bread- the Alter Rebbe rules that a meticulous person should not eat it without washing on hamotzi bread first. However, I did hear from someone who was in the Rebbe's circle that the Rebbe would eat mezonos bagels and say "mezonos". I heard firsthand that this person heard the Rebbe say the brocho. So...