Steps to reproduce:

1. npm i
2. Run: ENTRY=untyped npm run build:webpack
3. Run: ENTRY=typed npm run build:webpack
4. Run: ENTRY=untyped npm run build
5. Run: ENTRY=typed npm run build
6. Observe dist/webpack contains 3 files. Where the sourcemap files are named with the pattern of:

• {sourcemaps_content_hash}-{entry_name}-{entry_content_hash}-min.js.map

7. Observe dist/rspack contains only 2 files. Because one is overwritten, due to the entries contenthash being used rather than the sourcemaps content hash, resulting in the pattern:

• {entry_content_hash}-{entry_name}-{entry_content_hash}-min.js.map

When using the SourceMapDevToolPlugin, it is expected that the [contenthash] in it's configuration of the filename refers to the content hash of the sourcemap, not the content hash of the entry asset.