Saddle cut in two

Jerome can be somewhat hard on his equipment -- not just wheels.  I noticed a line across his saddle this morning, as we returned from a short ride in the hot, hot, humid weather.  Upon further inspection, the saddle seems to have been split completely into two pieces - fore and aft - with only the top cover and rails holding the pieces together.

How did it get this way?

Fortunately, I had a Charge Spoon saddle purchased last year from Wiggle but not yet tried, so Jerome will now be the test-rider.