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当整个文档只有一个有序列表时，结构化向上/向下删除会把列表删空， 进而删除列表节点本身，导致父 document 变为空，排版时触发 "Throwing empty composite box" 错误。 修复：删除列表节点后，若父 document 为空，则插入空字符串 "" 占位。 Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
描述列表结构化插入后，光标应进入 item* 子节点 "" 的开始位置 （tree-go-to new-item 0 :start），而非 document 层面的 :start。 Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
GatsbyUSTC
approved these changes
May 8, 2026
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