When having inlined components using custom component properties, bindings when using Loaders will fail

Declare a CustomComponent.qml.
Have a main.qml.
Have a property of type CustomComponent in your main.qml, containing a default value.
Have a Component inside main.qml, using another CustomComponent property, referencing the value from main.qml.
Load this Component using a Loader.
Run the main.qml.

See the error message displayed:
LoaderReferenceBug.qml:16: Unable to assign QObject* to CustomComponent_QMLTYPE_0*

See attached example for more information