diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 143ff8754be2675ddaac809cc973ea3bc605468a..3744d693e2f542ff8b8716aebed8c4ace2dfc9e4 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -4,6 +4,8 @@
 Feeds 6.x 1.0 xxxxx xx, 2010-xx-xx
 ----------------------------------
 
+- #648080 pvhee: FeedsNodeProcessor - static caching of mapping targets makes
+  mapping fail with multiple feed configurations.
 - #735444 Doug Preble: PubSubHubbub - Fix "Subscription refused by callback URL"
   with PHP 5.2.0.
 - alex_b: Suppress namespace warnings when parsing feeds for subscription in
diff --git a/plugins/FeedsProcessor.inc b/plugins/FeedsProcessor.inc
index 71a591d10e7399d309d70ebf7fdff38048bc2563..a95d074dd2688bc6d8d0797da9b49f2f1b3642ca 100644
--- a/plugins/FeedsProcessor.inc
+++ b/plugins/FeedsProcessor.inc
@@ -84,8 +84,8 @@ abstract class FeedsProcessor extends FeedsPlugin {
 
     // Static cache $targets as getMappingTargets() may be an expensive method.
     static $targets;
-    if (empty($targets)) {
-      $targets = $this->getMappingTargets();
+    if (!isset($targets[$this->id])) {
+      $targets[$this->id] = $this->getMappingTargets();
     }
     $parser = feeds_importer($this->id)->parser;
     if (empty($target_item)) {
@@ -104,8 +104,8 @@ abstract class FeedsProcessor extends FeedsPlugin {
     foreach ($this->config['mappings'] as $mapping) {
       $value = $parser->getSourceElement($source_item, $mapping['source']);
 
-      if (is_array($targets[$mapping['target']]) && isset($targets[$mapping['target']]['callback']) && function_exists($targets[$mapping['target']]['callback'])) {
-        $callback = $targets[$mapping['target']]['callback'];
+      if (is_array($targets[$this->id][$mapping['target']]) && isset($targets[$this->id][$mapping['target']]['callback']) && function_exists($targets[$this->id][$mapping['target']]['callback'])) {
+        $callback = $targets[$this->id][$mapping['target']]['callback'];
         $callback($target_item, $mapping['target'], $value);
       }
       else {