[Bug]: Not split into a new chunk with dynamic import when bundling esm

[Timeless0911]

Version

No response

Details

when comment chunkFormat: 'module, chunk has been splitted.

Reproduce link

No response

Reproduce Steps

No response

[Timeless0911]

The test cases about chunkFormat: module are not ported from webpack, need to be aligned.

[fi3ework]

Not reproducible in 0.1.0. We can't recall the detailed issue then.