ISTWCMS-6944: fix displaying hidden label in project search

src/Plugin/Block/UwCblProjectSearch.php

@@ -89,7 +89,10 @@ class UwCblProjectSearch extends BlockBase implements ContainerFactoryPluginInte
 
     // If there is no block title, then set the label so that
     // the template will know to place a visually hidden one.
-    if (!$this->configuration['label_display']) {
+    if (
+      !$this->configuration['label_display'] &&
+      $this->configuration['search_option'] !== 'all'
+    ) {
       $project_search['label'] = $this->t('Project search');
     }