[next] break `ts-loader` because of unknown option `ident`

[JounQin]

Version

15.0.0-beta.1

Reproduction link

https://github.com/JounQin/blog/tree/feat/vue-loader

Steps to reproduce

add a file .env.local with NODE_ENV=development and simply run yarn dev

What is expected?

build successfully

What is actually happening?

ERROR in ./src/entry-client.ts
Module build failed: Error: ts-loader was supplied with an unexpected loader option: ident