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Description

I recently noticed that my personal Vue lib output changes per build even if there's no code changes which broke the build cache.

I found that some shared-chunks' hash changed every time due to the import namespace identifier index.

import * as vue408 from "vue";
///            ^^^not consistent across multiple builds

So I moved the identifierMap into transform hook and reduced unnecessary namespace conversions to make sure that the namespace import index keeping stable per file.

Linked Issues

Additional context