Index: plugins/FeedsProcessor.inc
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/feeds/plugins/FeedsProcessor.inc,v
retrieving revision 1.18
diff -u -p -r1.18 FeedsProcessor.inc
--- plugins/FeedsProcessor.inc	10 Sep 2010 15:44:56 -0000	1.18
+++ plugins/FeedsProcessor.inc	7 Jan 2011 05:51:46 -0000
@@ -101,13 +101,14 @@ abstract class FeedsProcessor extends Fe
     // Many mappers add to existing fields rather than replacing them. Hence we
     // need to clear target elements of each item before mapping in case we are
     // mapping on a prepopulated item such as an existing node.
+    $convert_to_array = FALSE;
     if (is_array($target_item)) {
       $target_item = (object)$target_item;
       $convert_to_array = TRUE;
     }
     foreach ($this->config['mappings'] as $mapping) {
-      if (isset($targets[$mapping['target']]['real_target'])) {
-        unset($target_item->{$targets[$mapping['target']]['real_target']});
+      if (isset($target_item->{$targets[$this->id][$mapping['target']]['real_target']})) {
+        unset($target_item->{$targets[$this->id][$mapping['target']]['real_target']});
       }
       elseif (isset($target_item->{$mapping['target']})) {
         unset($target_item->{$mapping['target']});