Issue #3253347: Allow to use several bundles in entity_lookup plugin

src/Plugin/migrate/process/EntityLookup.php

@@ -32,7 +32,8 @@ use Symfony\Component\DependencyInjection\ContainerInterface;
  *   values. Defaults to '=' for scalar values and 'IN' for arrays.
  * - bundle_key: (optional) The name of the bundle field on the entity type
  *   being queried.
- * - bundle: (optional) The value to query for the bundle.
+ * - bundle: (optional) The value to query for the bundle - can be a string or
+ *   an array.
  * - access_check: (optional) Indicates if access to the entity for this user
  *   will be checked. Default is true.
  * - ignore_case: (optional) Whether to ignore case in the query. Defaults to
@@ -316,7 +317,7 @@ class EntityLookup extends ProcessPluginBase implements ContainerFactoryPluginIn
     }
 
     if ($this->lookupBundleKey) {
-      $query->condition($this->lookupBundleKey, $this->lookupBundle);
+      $query->condition($this->lookupBundleKey, (array) $this->lookupBundle, 'IN');
     }
     $results = $query->execute();