#906654 alex_b: Fix phantom subscriptions.

CHANGELOG.txt

@@ -3,6 +3,7 @@
 Feeds 6.x xxxxxxxxxxxxxxxxxxxxxx
 --------------------------------
 
+- #906654 alex_b: Fix phantom subscriptions.
 - #867892 alex_b: PubSubHubbub - slow down import frequency of feeds that are
   subscribed to hub.
 - #908964 alex_b: Break out scheduler. Note: Features depends on Job Scheduler

includes/FeedsSource.inc

@@ -287,13 +287,20 @@ class FeedsSource extends FeedsConfigurable {
   }
 
   /**
-   * Override existing, only return source if importer and source 'exist'.
+   * Only return source if configuration is persistent and valid.
    *
    * @see FeedsConfigurable::existing().
    */
   public function existing() {
-    $this->importer->existing();
-    return parent::existing();
+    // If there is no feed nid given, there must be no content type specified.
+    // If there is a feed nid given, there must be a content type specified.
+    // Ensure that importer is persistent (= defined in code or DB).
+    // Ensure that source is persistent (= defined in DB).
+    if ((empty($this->feed_nid) && empty($this->importer->config['content_type'])) ||
+        (!empty($this->feed_nid) && !empty($this->importer->config['content_type']))) {
+      $this->importer->existing();
+      return parent::existing();
+    }
   }
 
   /**