GitHub #389 / PR #390 by @Xinglan233 (this commit is substantially the PR: the snapshot and its test file, ported).
onArt read target.items after grantChess; a gain that completes a merge runs _mergeChess first, which consumes the
target and empties its items, so the copy loop ran on an empty list (two base 维式重锤 never became the +25% one).
The item ids are now recorded before the gain.
Added on top of the PR: after a promotion the copied items are never equipped onto the elite (an already-advanced
item used to go straight back onto it via equipDirect). The promotion unequips the copies (PRTS 帮助 自动卸除 on
合并) and the 画卷 note says the obtained equipment arrives unequipped, so they wait in the hand; a copied normal item
merges with the returned original as before. The non-promotion path is unchanged.
Tests: test/match/scroll-copy-merge.test.js (8; 4 fail on the parent, the advanced-item case also fails with the
PR's snapshot alone). Golden unchanged (no scenario casts 画卷 into a promotion).
Xinglan233
19c7b26850