No, this is not the first one and it won’t be the last one either. The cracked was caused by the over tightening of the stem securing bolt to the fork. It happens to a lot of people, so take care when tightening such bolt.
Known as the titanium guy at Bike48. Always trying to tell people titanium is 45% lighter than steel. Proactively modding up his Brompton with the left over parts!