Issue #2876696: gnode_node_access should check for 'view own unpublished content' permission

src/Plugin/GroupContentPermissionProvider.php

@@ -117,11 +117,12 @@ class GroupContentPermissionProvider extends GroupContentHandlerBase implements
   public function getEntityViewUnpublishedPermission($scope = 'any') {
     if ($this->definesEntityPermissions) {
       if ($this->implementsPublishedInterface) {
-        // @todo Implement view own unpublished permission and add it here by
-        // checking for $this->implementsOwnerInterface.
         if ($scope === 'any') {
           return "view $scope unpublished $this->pluginId entity";
         }
+        if ($scope === 'own' && $this->implementsOwnerInterface) {
+          return "view $scope unpublished $this->pluginId entity";
+        }
       }
     }
     return FALSE;