Undefined index: dataScopePrefix al cargar el checkout

[barbazul]

En Magento Enterprise 2.4.2-p1
Versión de Andreani de master al día de la fecha.

Al cargar el checkout se observa lo siguiente:

1 exception(s):
Exception #0 (Exception): Notice: Undefined index: dataScopePrefix in /var/www/vendor/magento/module-customer-custom-attributes/Block/Checkout/LayoutProcessor.php on line 139

Exception #0 (Exception): Notice: Undefined index: dataScopePrefix in /var/www/vendor/magento/module-customer-custom-attributes/Block/Checkout/LayoutProcessor.php on line 139
<pre>#1 Magento\CustomerCustomAttributes\Block\Checkout\LayoutProcessor->processCustomAttributesForPaymentMethods() called at [vendor/magento/module-customer-custom-attributes/Block/Checkout/LayoutProcessor.php:86]
#2 Magento\CustomerCustomAttributes\Block\Checkout\LayoutProcessor->process() called at [vendor/magento/module-checkout/Block/Onepage.php:81]
#3 Magento\Checkout\Block\Onepage->getJsLayout() called at [vendor/magento/framework/Interception/Interceptor.php:58]
#4 Magento\Checkout\Block\Onepage\Interceptor->___callParent() called at [vendor/magento/framework/Interception/Interceptor.php:138]
#5 Magento\Checkout\Block\Onepage\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/framework/Interception/Interceptor.php:153]
#6 Magento\Checkout\Block\Onepage\Interceptor->___callPlugins() called at [generated/code/Magento/Checkout/Block/Onepage/Interceptor.php:23]
#7 Magento\Checkout\Block\Onepage\Interceptor->getJsLayout() called at [vendor/magento/module-checkout/view/frontend/templates/onepage.phtml:23]
#8 include() called at [vendor/magento/framework/View/TemplateEngine/Php.php:71]
#9 Magento\Framework\View\TemplateEngine\Php->render() called at [vendor/magento/framework/View/Element/Template.php:273]
#10 Magento\Framework\View\Element\Template->fetchView() called at [generated/code/Magento/Checkout/Block/Onepage/Interceptor.php:122]
#11 Magento\Checkout\Block\Onepage\Interceptor->fetchView() called at [vendor/magento/framework/View/Element/Template.php:303]
#12 Magento\Framework\View\Element\Template->_toHtml() called at [vendor/magento/framework/View/Element/AbstractBlock.php:1111]
#13 Magento\Framework\View\Element\AbstractBlock->Magento\Framework\View\Element\{closure}() called at [vendor/magento/framework/View/Element/AbstractBlock.php:1115]
#14 Magento\Framework\View\Element\AbstractBlock->_loadCache() called at [vendor/magento/framework/View/Element/AbstractBlock.php:675]
#15 Magento\Framework\View\Element\AbstractBlock->toHtml() called at [generated/code/Magento/Checkout/Block/Onepage/Interceptor.php:329]
#16 Magento\Checkout\Block\Onepage\Interceptor->toHtml() called at [vendor/magento/framework/View/Layout.php:566]
#17 Magento\Framework\View\Layout->_renderBlock() called at [vendor/magento/framework/View/Layout.php:542]
#18 Magento\Framework\View\Layout->renderNonCachedElement() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:149]
#19 Magento\Framework\View\Layout\Interceptor->renderNonCachedElement() called at [vendor/magento/framework/View/Layout.php:497]
#20 Magento\Framework\View\Layout->renderElement() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:140]
#21 Magento\Framework\View\Layout\Interceptor->renderElement() called at [vendor/magento/framework/View/Layout.php:594]
#22 Magento\Framework\View\Layout->_renderContainer() called at [vendor/magento/framework/View/Layout.php:544]
#23 Magento\Framework\View\Layout->renderNonCachedElement() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:149]
#24 Magento\Framework\View\Layout\Interceptor->renderNonCachedElement() called at [vendor/magento/framework/View/Layout.php:497]
#25 Magento\Framework\View\Layout->renderElement() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:140]
#26 Magento\Framework\View\Layout\Interceptor->renderElement() called at [vendor/magento/framework/View/Layout.php:594]
#27 Magento\Framework\View\Layout->_renderContainer() called at [vendor/magento/framework/View/Layout.php:544]
#28 Magento\Framework\View\Layout->renderNonCachedElement() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:149]
#29 Magento\Framework\View\Layout\Interceptor->renderNonCachedElement() called at [vendor/magento/framework/View/Layout.php:497]
#30 Magento\Framework\View\Layout->renderElement() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:140]
#31 Magento\Framework\View\Layout\Interceptor->renderElement() called at [vendor/magento/framework/View/Layout.php:594]
#32 Magento\Framework\View\Layout->_renderContainer() called at [vendor/magento/framework/View/Layout.php:544]
#33 Magento\Framework\View\Layout->renderNonCachedElement() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:149]
#34 Magento\Framework\View\Layout\Interceptor->renderNonCachedElement() called at [vendor/magento/framework/View/Layout.php:497]
#35 Magento\Framework\View\Layout->renderElement() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:140]
#36 Magento\Framework\View\Layout\Interceptor->renderElement() called at [vendor/magento/framework/View/Layout.php:594]
#37 Magento\Framework\View\Layout->_renderContainer() called at [vendor/magento/framework/View/Layout.php:544]
#38 Magento\Framework\View\Layout->renderNonCachedElement() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:149]
#39 Magento\Framework\View\Layout\Interceptor->renderNonCachedElement() called at [vendor/magento/framework/View/Layout.php:497]
#40 Magento\Framework\View\Layout->renderElement() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:140]
#41 Magento\Framework\View\Layout\Interceptor->renderElement() called at [vendor/magento/framework/View/Layout.php:594]
#42 Magento\Framework\View\Layout->_renderContainer() called at [vendor/magento/framework/View/Layout.php:544]
#43 Magento\Framework\View\Layout->renderNonCachedElement() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:149]
#44 Magento\Framework\View\Layout\Interceptor->renderNonCachedElement() called at [vendor/magento/framework/View/Layout.php:497]
#45 Magento\Framework\View\Layout->renderElement() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:140]
#46 Magento\Framework\View\Layout\Interceptor->renderElement() called at [vendor/magento/framework/View/Layout.php:594]
#47 Magento\Framework\View\Layout->_renderContainer() called at [vendor/magento/framework/View/Layout.php:544]
#48 Magento\Framework\View\Layout->renderNonCachedElement() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:149]
#49 Magento\Framework\View\Layout\Interceptor->renderNonCachedElement() called at [vendor/magento/framework/View/Layout.php:497]
#50 Magento\Framework\View\Layout->renderElement() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:140]
#51 Magento\Framework\View\Layout\Interceptor->renderElement() called at [vendor/magento/framework/View/Layout.php:963]
#52 Magento\Framework\View\Layout->getOutput() called at [vendor/magento/framework/Interception/Interceptor.php:58]
#53 Magento\Framework\View\Layout\Interceptor->___callParent() called at [vendor/magento/framework/Interception/Interceptor.php:138]
#54 Magento\Framework\View\Layout\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/framework/Interception/Interceptor.php:153]
#55 Magento\Framework\View\Layout\Interceptor->___callPlugins() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:347]
#56 Magento\Framework\View\Layout\Interceptor->getOutput() called at [vendor/magento/framework/View/Result/Page.php:258]
#57 Magento\Framework\View\Result\Page->render() called at [vendor/magento/framework/View/Result/Layout.php:171]
#58 Magento\Framework\View\Result\Layout->renderResult() called at [vendor/magento/framework/Interception/Interceptor.php:58]
#59 Magento\Framework\View\Result\Page\Interceptor->___callParent() called at [vendor/magento/framework/Interception/Interceptor.php:138]
#60 Magento\Framework\View\Result\Page\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/framework/Interception/Interceptor.php:153]
#61 Magento\Framework\View\Result\Page\Interceptor->___callPlugins() called at [generated/code/Magento/Framework/View/Result/Page/Interceptor.php:95]
#62 Magento\Framework\View\Result\Page\Interceptor->renderResult() called at [vendor/magento/framework/App/Http.php:120]
#63 Magento\Framework\App\Http->launch() called at [generated/code/Magento/Framework/App/Http/Interceptor.php:23]
#64 Magento\Framework\App\Http\Interceptor->launch() called at [vendor/magento/framework/App/Bootstrap.php:263]
#65 Magento\Framework\App\Bootstrap->run() called at [pub/index.php:40]
</pre>

Esto sucede porque el LayoutProcessor está agregando los campos en algunos contenedores que no son realmente formularios de pago y que no definen esa propiedad.