ElementNode is unset in fusion context

[jakob-LIS]

Some flow queries on the elementNode do not work. It appears that the elementNode is unset on reload of the node. To give an example the following throws an error when changes on the element are saved in the Neos backend:

prototype(Neos.Form.Builder:NodeBasedFormElement) {
    element {
        condition = ${q(elementNode).parents('[instanceof Neos.Form.Builder:NodeBasedForm]').find("[instanceof Neos.Form.Builder:FormElement][label='" + elementNode.properties.label + "']").is()}
    }
}

(The example above is simplified for clarity. I originally used this in a Neos.Fusion:Case)

The following error is thrown:

No operation which satisfies the runtime constraints found for "parents".

Apparently the elementNode is missing from the fusion context for the OutOfBandRendering.