diff --git a/core/modules/migrate/src/Plugin/migrate/process/MigrationLookup.php b/core/modules/migrate/src/Plugin/migrate/process/MigrationLookup.php
index e8a075606e..617650ccf6 100644
--- a/core/modules/migrate/src/Plugin/migrate/process/MigrationLookup.php
+++ b/core/modules/migrate/src/Plugin/migrate/process/MigrationLookup.php
@@ -160,9 +160,7 @@ public function transform($value, MigrateExecutableInterface $migrate_executable
     $source_id_values = [];
     $migrations = $this->migrationPluginManager->createInstances($migration_ids);
     foreach ($migrations as $migration_id => $migration) {
-      if ($migration_id == $this->migration->id()) {
-        $self = TRUE;
-      }
+
       if (isset($this->configuration['source_ids'][$migration_id])) {
         $configuration = ['source' => $this->configuration['source_ids'][$migration_id]];
         $value = $this->processPluginManager
@@ -184,13 +182,10 @@ public function transform($value, MigrateExecutableInterface $migrate_executable
       return NULL;
     }
 
-    if (!$destination_ids && ($self || isset($this->configuration['stub_id']) || count($migrations) == 1)) {
+    if (!$destination_ids) {
       // If the lookup didn't succeed, figure out which migration will do the
       // stubbing.
-      if ($self) {
-        $migration = $this->migration;
-      }
-      elseif (isset($this->configuration['stub_id'])) {
+      if (isset($this->configuration['stub_id'])) {
         $migration = $migrations[$this->configuration['stub_id']];
       }
       else {