Assembly is duplicating dependecies in the output

When I have an assembly descriptor that contains 2 modules that both have the same dependencies, those dependencies are duplicated instead of skipped/overwritten in the target zip file. This is very similiar to MASSEMBLY-285, but is a problem on the dependencies and not the modules themselves. This is only a problem when

    <moduleSet>
      <includes>
        <include>aaa:aaaa</include>
        <include>aaa:bbbb</include>
      </includes>
      <binaries>
        <includeDependencies>true</includeDependencies>
        <unpack>false</unpack>
        <outputDirectory>lib</outputDirectory>
      </binaries>
    </moduleSet>