Manifest entries from archive configuration are not added in final MANIFEST

<configuration>
  <descriptors>
    <descriptor>src/main/assembly/web-bundle.xml</descriptor>
  </descriptors>
  <archive>
    <manifestFile>${project.build.outputDirectory}/META-INF/MANIFEST.MF</manifestFile>
    <manifestEntries>
      <Jetty-Environment>ee10</Jetty-Environment>
    </manifestEntries>
  </archive>
  <mergeManifestMode>merge</mergeManifestMode>
</configuration>