博学多通 "升级调度中心至2、4和6级后,获得1次特殊刷新:此次刷新出现的干员优先为<萨尔贡>干员" names no 免费 (德克萨斯's trait says 「获得1次免费刷新」 for a free one); bands/meta.js read the blackboard's `price` 0 as a free refresh and granted one at each of those level-ups (measured: level 2 → 1 free refresh, the special refresh cost 0, the next 1). Now the level-up only marks the next manual refresh special: it costs the refresh price (unless another free refresh pays it) and fills the chess slots with <萨尔贡> first as before. [ASSUMED] `cnt` / `price` 0 change nothing. Test: test/content/bands.test.js (佩佩, fails on the parent). Golden unchanged (no corpus match levels a 佩佩 shop).