'Flowpack.SearchPlugin:Search':
  superTypes:
    'Neos.Neos:Content': true
  ui:
    label: 'Search'
    icon: 'icon-search'

'Neos.Neos:Document':
  superTypes:
    'Flowpack.SearchPlugin:SuggestableMixin': true
    'Flowpack.SearchPlugin:AutocompletableMixin': true

'Neos.NodeTypes:TitleMixin':
  superTypes:
    'Flowpack.SearchPlugin:SuggestableMixin': true
    'Flowpack.SearchPlugin:AutocompletableMixin': true

'Neos.NodeTypes:TextMixin':
  superTypes:
    'Flowpack.SearchPlugin:SuggestableMixin': true
    'Flowpack.SearchPlugin:AutocompletableMixin': true
  properties:
    '__completion':
      search:
        indexing: "${Flowpack.SearchPlugin.Suggestion.buildConfig(q(node).property('text'), {nodeIdentifier: node.identifier}, 10)}"
    '__completion':
      search:
        indexing: "${q(node).property('text')}"

'Flowpack.SearchPlugin:Search':
  superTypes:
    'Neos.Neos:Content': true
  ui:
    label: 'Search'
    icon: 'icon-search'

'Neos.Neos:Document':
  superTypes:
    'Flowpack.SearchPlugin:SuggestableMixin': true
    'Flowpack.SearchPlugin:AutocompletableMixin': true

'Neos.NodeTypes:TitleMixin':
  superTypes:
    'Flowpack.SearchPlugin:SuggestableMixin': true
    'Flowpack.SearchPlugin:AutocompletableMixin': true

'Neos.NodeTypes:TextMixin':
  superTypes:
    'Flowpack.SearchPlugin:SuggestableMixin': true
    'Flowpack.SearchPlugin:AutocompletableMixin': true
  properties:
    '__suggestions':
      search:
        indexing: "${Flowpack.SearchPlugin.Suggestion.buildConfig(q(node).property('text'), {nodeIdentifier: node.identifier}, 10)}"
    '__completion':
      search:
        indexing: "${q(node).property('text')}"

Use correct property name for overriding suggestions
BUGFIX: Use correct property name for overriding suggestions
