title: MSBuild and <AutoUnifyAssemblyReferences />
body: <p>The "Microsoft.Bcl.Build.targets" contains this block:</p>
  
  <pre><code>    &lt;!-- 
    Workaround MSBuild issue that prevents System.Runtime 2.5 and System.Threading.Tasks 2.5 from
    satisfying indirect dependencies on System.Runtime 1.5 and System.Threading.Tasks 1.5 respectively.  
  --&gt;
  &lt;AutoUnifyAssemblyReferences&gt;false&lt;/AutoUnifyAssemblyReferences&gt;
  </code></pre>
  
  <p>What actually "AutoUnifyAssemblyReferences" do?</p>