### 描述问题 Describe the problem 目前 `spans` 表中上标与下标的 `type` 字段值均为 `sub` <!-- 请尽量清晰地描述你遇到的问题。 Please describe your problem as clearly and accurately as possible. --> ### 期待的结果 Expected result 上标元素 `type` 字段值为 `sup`, 下标元素 `type` 字段值为 `sub` <!-- 请尽量清晰地描述你所期待的结果。 Please be as clear and accurate as possible to describe the results you are looking for. --> ### 版本环境 Version environment * Version: 1.9.2
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