BUGFIX: Wrong detection of content node for the teaser feature

Configuration/NodeTypes.Document.yaml

@@ -51,7 +51,6 @@
   properties:
     teaser:
       type: string
-      defaultValue: 'Enter a teaser here'
       ui:
         label: 'Teaser text'
         inlineEditable: true

Resources/Private/Fusion/NodeTypes/AbstractNews.fusion

 prototype(Ttree.News:AbstractNews) < prototype(Neos.Neos:Content) {
 
-	firstContentNode = ${q(node).children('main').find('[instanceof Neos.Neos.NodeTypes:Text]').get(0)}
+	firstContentNode = ${q(node).children('main').find('[instanceof Neos.NodeTypes:Text]').get(0)}
 	@context.firstContentNode = ${this.firstContentNode}
 	firstContentNodeText = ${q(this.firstContentNode).property('text')}
 	@context.firstContentNodeText = ${this.firstContentNodeText}