Player report after 0.1.0: "源石溶剂两个白的合成一个金色的之后又多给一个白的".
Not reproduced: buying next to a white (hand / equipped), buying twice, equip
on another or a full carrier, reward pick, 道具补给, 列装, 整备, 画卷 and the
sale of a carrier all end with one golden and no white; random intents over
all 50 mergeable items conserve the white-equivalents and never leave a pair.
The one gap: equipment a promotion (PlayerState._mergeChess) or an effect
that removes an operator (ctx.destroyPiece) returns to the hand skipped the
auto-merge. Unreachable from a normal state (a pair never exists), closed:
both now run checkItemMerges.
sganggs
8fa7a85a52