基于你这个 patch 改了下，唯一性应该在 rule 定义的时候被标记，而不是在某个特定的 unitybuild rule 里面。

否则如果有其他 rule 也会去改 sourcebatches ，同样会有类似问题，应该从源头去配置定义。后面也方便其他地方使用这个状态。

你可以试试 #6446

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Based on your patch, uniqueness should be marked when the rule is defined, rather than in a specific unitybuild rule.

Otherwise, if there are other rules, the sourcebatches will also be modified, and there will be similar problems. The definition should be configured from the source. This state is also convenient for other places to use later.

You can try #6446