I just made an experiment to verify that the correct version of xUnit.net (1.8.0.1549) is still loaded for AutoFixture.xUnit.net.UnitTest as well asAutoFixture.xUnit.net projects.

-----

I used the following code to create files containing the assembly names that are loaded into the execution context of the AppDomain:

```c#
File.WriteAllLines(
        "loaded-assemblies.txt", 
        AppDomain.CurrentDomain.GetAssemblies().Select(x => x.FullName).ToArray());
```

For **AutoFixtureUnitTest** project:

```
mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
xunit, Version=1.9.2.1705, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c
Ploeh.AutoFixtureUnitTest, Version=3.18.9.0, Culture=neutral, PublicKeyToken=null
System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
Ploeh.AutoFixture, Version=3.18.9.0, Culture=neutral, PublicKeyToken=null
System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
System.ComponentModel.DataAnnotations, Version=4.0.0.0, 
	Culture=neutral, PublicKeyToken=31bf3856ad364e35
Ploeh.TestTypeFoundation, Version=3.18.9.0, Culture=neutral, PublicKeyToken=null
Grean.Exude, Version=0.2.0.0, Culture=neutral, PublicKeyToken=f2db5b58d0699db9
xunit.extensions, Version=1.8.0.1549, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c
```

xUnit.net 1.9.2.1705 and Exude 0.2.0.0 are loaded here, which is expected with this Pull Request.

For **AutoFixture.xUnit.net.UnitTest** project:

```
mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
xunit, Version=1.8.0.1549, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c
Ploeh.AutoFixture.Xunit.UnitTest, Version=3.18.9.0, Culture=neutral, PublicKeyToken=null
System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
xunit.extensions, Version=1.8.0.1549, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c
System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
Ploeh.AutoFixture, Version=3.18.9.0, Culture=neutral, PublicKeyToken=null
Ploeh.AutoFixture.Xunit, Version=3.18.9.0, Culture=neutral, PublicKeyToken=null
System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
Ploeh.TestTypeFoundation, Version=3.18.9.0, Culture=neutral, PublicKeyToken=null
```

xUnit.net 1.8.0.1549 is loaded, Exude is not loaded.

For **AutoFixture.xUnit.net** project: *(double entry bookkeeping)*

```
mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
xunit, Version=1.8.0.1549, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c
Ploeh.AutoFixture.Xunit.UnitTest, Version=3.18.9.0, Culture=neutral, PublicKeyToken=null
System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
xunit.extensions, Version=1.8.0.1549, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c
System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
Ploeh.AutoFixture, Version=3.18.9.0, Culture=neutral, PublicKeyToken=null
Ploeh.AutoFixture.Xunit, Version=3.18.9.0, Culture=neutral, PublicKeyToken=null
System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
Ploeh.TestTypeFoundation, Version=3.18.9.0, Culture=neutral, PublicKeyToken=null
```

xUnit.net 1.8.0.1549 is loaded, Exude is not loaded.

Hope that helps.