Reproduction link or steps

https://github.com/rolldown/rolldown/pull/5975/files#diff-6a591d24af87b0268abbd92bdb7c801571672953cd3c029581e9a2d8ac0ed4ba

What is expected?

generate valid mapping

What is actually happening?

invalid mapping

System Info

n/a

Any additional comments?

No response