Visual Studio keeps adding property to my csproj. Why?

Question

I'm using Visual Studio 2012 RC to work with my C# solution. All my configuration-specific settings are stored within a single .props file which is then included by all my .csproj files.

Yet VS insists on putting this right in front of the include:

<PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|AnyCPU'">
   <IntermediateOutputPath>C:\Users\xyz\AppData\Local\Temp\vs855E.tmp\Debug\</IntermediateOutputPath>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|AnyCPU'">
   <IntermediateOutputPath>C:\Users\xyz\AppData\Local\Temp\vs855E.tmp\Release\</IntermediateOutputPath>
</PropertyGroup>

<Import Project="$(MSBuildProjectDirectory)\..\Common.props" />

Why is that?

FYI, my common file looks like this: http://pastebin.com/Uued1XY0