Outputidrectory appended by dependencyset include name on filtered=true

<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0 http://maven.apache.org/xsd/assembly-1.1.0.xsd">
  
  <id>Delivery</id>
  
  <formats>
    <format>zip</format>
  </formats>  
  
  <includeBaseDirectory>true</includeBaseDirectory>
  
  <dependencySets>  
    <dependencySet>
      <outputDirectory>.</outputDirectory>
      <unpack>true</unpack>
      <includes>
        <include>commons-collections:commons-collections:*</include>
      </includes>
      <useStrictFiltering>true</useStrictFiltering>
      <unpackOptions>        
        <includes>
          <include>META-INF/MANIFEST.MF</include>
        </includes>
        <filtered>true</filtered>
      </unpackOptions>
    </dependencySet>
  </dependencySets>
</assembly>