All reports of source-contains-prebuilt-wasm-binary for the archive. The extended description of this tag is:
The source tarball contains a prebuilt binary wasm object. They are usually provided for the convenience of users. These files usually just take up space in the tarball and need to be rebuilt from source.
Check if upstream also provides source-only tarballs that you can use as the upstream distribution instead. If not, you may want to ask upstream to provide source-only tarballs.
This tag has not been emitted in any package tested by Lintian.