Well, good for reducing its presence. Not so much for forensics, unless someone grabbed a copy before deletion.
db0’s fork was from another fork, which is almost three years old at this point. Scratch that, github just reassigns the fork parent if the source repo gets deleted.
That took longer than I care to admit to properly parse. Kept conflating the fork parent as the code base, and wondering why it was so confusing.
Probably time for my morning coffee.