TYPO3.Fluid

You often have the same form-fields in a new-template like in an edit-template. So I would like to put them into a partial which is used in the new-form and in the edit-form.
The form-tag itself would stay in the different templates.

So a partial could look like this:

<label for="titel">Titel/Tätigkeit:</label><br />
<f:form.textbox property="titel" size="70" id="titel" /><br />
<label for="personentage">Personentage:</label><br />
<f:form.textbox property="personentage" size="5" id="personentage" /><br />

Being included like this:

<f:form method="post" action="createOhneProjekt" object="{newAuftrag}" name="newAuftrag">
    <f:form.hidden name="kunde" value="{kunde}" />
        <f:render partial="auftragNewEditFormPart" arguments="{newAuftrag: newAuftrag}"/>    
    <f:form.submit value="Auftrag Anlegen" />
</f:form>

This results to the exception: #1243325768: No value found for key "F3\Fluid\ViewHelpers\FormViewHelper->formName"