b: WIP snapshot (delete N=2)
b: WIP snapshot (delete N=4)
b: WIP snapshot (delete N=4)
b: WIP snapshot (delete N=11)
b: WIP snapshot (delete N=11)
b: WIP snapshot (delete N=11)
b: WIP snapshot (delete N=11)
b: WIP snapshot (delete N=11)
b: WIP snapshot (delete N=12)
b: WIP snapshot (delete N=12)
b: WIP snapshot (delete N=17)
b: Delete - tests pass