Changes between #791 and #793

#793 (Oct 12, 2021, 12:43:31 PM)

1. Drop owner string from Owner trait (commit: fc065df) — fullwall / detail

#792 (Sep 23, 2021, 6:12:09 AM)

1. Add new onPreSpawn method to trait (commit: 5ee38cc) — fullwall / detail