多个事务同时提交问题

## Why you need it?
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## How it could be?
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## Other related information
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Issue 标题提出了一个并发事务提交问题，但正文仅包含功能请求模板，没有指明任何文件、测试、入口点或预期行为。首先定位事务提交流程，并复现同时提交的情况；在工作可以被视为完成之前，Issue 需要定义明确的失败场景和验收标准。

由索引模型根据 Issue 内容生成。