Engine shut off while downshifting

[madsocial]

Has anyone experienced their engine just cutting off during a downshifting slow down?

I was going about 60mph on the highway yesterday morning. When I got on the off/on ramp to merge onto the interstate I started to downshift to slow my speed with light braking. As I began my right turn onto the the interstate on ramp, I was then in 2nd gear with brakes engaged for the sharp turn and the bike just cut off on me. It started right back up and I kept going, but it cut off. I couldn't believe it. I had mentioned it to my husband and he had told me that had happened to him as he was downshifting and slowing going downhill somewhere.

Any idea why guys?