Can't build Win Store Apps when project contains "Unity Test Tools".

Console error:
TypeDB: Class 'UnityTest.ComparerBaseGeneric' was already registered, previous declaration was in 'Assembly-CSharp.dll' with 0 fields, current declaration is in 'Assembly-CSharp.dll' with 1 fields. Please check if your project doesn't contain classes with duplicate names. For ex., non-generic 'class MyClass' and generic 'class MyClass<T>.

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Regression from 4.5.0b4 to 4.5.0f2. Also, can't build on Unity 5 versions.

Workaround:
Changing "Compilation Overrides" from "Use net Core" to "None" editor is able to build WSA solution.