Rolls a spawn/content roster: the regular entries, then whichever rare additions rolled in,
then a per-entry alternative-variant swap over the regular entries only, then (unless
disabled) a shuffle - the "add-rare, swap, shuffle" order a variant-spawn table commonly
needs. Every roll, including a disabled rare entry's explicit non-roll, is recorded in
trace, so two runs against the same seed can be diffed roll for roll rather than only by
final roster.
Rolls a spawn/content roster: the regular entries, then whichever rare additions rolled in, then a per-entry alternative-variant swap over the regular entries only, then (unless disabled) a shuffle - the "add-rare, swap, shuffle" order a variant-spawn table commonly needs. Every roll, including a disabled rare entry's explicit non-roll, is recorded in
trace, so two runs against the same seed can be diffed roll for roll rather than only by final roster.