diff --git a/modules/field/field.attach.inc b/modules/field/field.attach.inc
index 4ca15f5..769d244 100644
--- a/modules/field/field.attach.inc
+++ b/modules/field/field.attach.inc
@@ -303,9 +303,6 @@ function _field_invoke_multiple($op, $entity_type, $entities, &$a = NULL, &$b =
         if (!isset($fields[$field_id])) {
           $fields[$field_id] = $field;
         }
-        // Group the corresponding instances and entities.
-        $grouped_instances[$field_id][$id] = $instance;
-        $grouped_entities[$field_id][$id] = $entities[$id];
         // Extract the field values into a separate variable, easily accessed
         // by hook implementations.
         // Unless a language suggestion is provided we iterate on all the
@@ -315,6 +312,10 @@ function _field_invoke_multiple($op, $entity_type, $entities, &$a = NULL, &$b =
         $languages = _field_language_suggestion($available_languages, $language, $field_name);
         foreach ($languages as $langcode) {
           $grouped_items[$field_id][$langcode][$id] = isset($entity->{$field_name}[$langcode]) ? $entity->{$field_name}[$langcode] : array();
+          // Group the instances and entities corresponding to the current
+          // field.
+          $grouped_instances[$field_id][$langcode][$id] = $instance;
+          $grouped_entities[$field_id][$langcode][$id] = $entities[$id];
         }
       }
     }
@@ -327,8 +328,10 @@ function _field_invoke_multiple($op, $entity_type, $entities, &$a = NULL, &$b =
     $field_name = $field['field_name'];
     $function = $options['default'] ? 'field_default_' . $op : $field['module'] . '_field_' . $op;
     // Iterate over all the field translations.
-    foreach ($grouped_items[$field_id] as $langcode => $items) {
-      $results = $function($entity_type, $grouped_entities[$field_id], $field, $grouped_instances[$field_id], $langcode, $grouped_items[$field_id][$langcode], $a, $b);
+    foreach ($grouped_items[$field_id] as $langcode => &$items) {
+      $entities = $grouped_entities[$field_id][$langcode];
+      $instances = $grouped_instances[$field_id][$langcode];
+      $results = $function($entity_type, $entities, $field, $instances, $langcode, $items, $a, $b);
       if (isset($results)) {
         // Collect results by entity.
         // For hooks with array results, we merge results together.
@@ -346,9 +349,9 @@ function _field_invoke_multiple($op, $entity_type, $entities, &$a = NULL, &$b =
 
     // Populate field values back in the entities, but avoid replacing missing
     // fields with an empty array (those are not equivalent on update).
-    foreach ($grouped_entities[$field_id] as $id => $entity) {
-      foreach ($grouped_items[$field_id] as $langcode => $items) {
-        if (isset($grouped_items[$field_id][$langcode][$id]) && ($grouped_items[$field_id][$langcode][$id] !== array() || isset($entity->{$field_name}[$langcode]))) {
+    foreach ($grouped_entities[$field_id] as $langcode => $entities) {
+      foreach ($entities as $id => $entity) {
+        if ($grouped_items[$field_id][$langcode][$id] !== array() || isset($entity->{$field_name}[$langcode])) {
           $entity->{$field_name}[$langcode] = $grouped_items[$field_id][$langcode][$id];
         }
       }
diff --git a/modules/field/tests/field.test b/modules/field/tests/field.test
index 9281273..ebb1c9f 100644
--- a/modules/field/tests/field.test
+++ b/modules/field/tests/field.test
@@ -2681,6 +2681,9 @@ class FieldTranslationsTestCase extends FieldTestCase {
    * Test the multilanguage logic of _field_invoke().
    */
   function testFieldInvoke() {
+    // Enable field translations for the entity.
+    field_test_entity_info_translatable('test_entity', TRUE);
+
     $entity_type = 'test_entity';
     $entity = field_test_create_stub_entity(0, 0, $this->instance['bundle']);
 
@@ -2708,6 +2711,7 @@ class FieldTranslationsTestCase extends FieldTestCase {
       // forwarded to the callback function.
       $this->assertEqual($hash, $result, t('The result for %language is correctly stored.', array('%language' => $langcode)));
     }
+
     $this->assertEqual(count($results), count($available_languages), t('No unavailable language has been processed.'));
   }
 
@@ -2767,8 +2771,8 @@ class FieldTranslationsTestCase extends FieldTestCase {
       foreach ($results as $langcode => $result) {
         if (isset($values[$id][$langcode])) {
           $hash = hash('sha256', serialize(array($entity_type, $entities[$id], $this->field_name, $langcode, $values[$id][$langcode])));
-          // Check whether the parameters passed to _field_invoke() were correctly
-          // forwarded to the callback function.
+          // Check whether the parameters passed to _field_invoke_multiple()
+          // were correctly forwarded to the callback function.
           $this->assertEqual($hash, $result, t('The result for entity %id/%language is correctly stored.', array('%id' => $id, '%language' => $langcode)));
         }
       }
diff --git a/modules/field/tests/field_test.module b/modules/field/tests/field_test.module
index 7e34906..4075296 100644
--- a/modules/field/tests/field_test.module
+++ b/modules/field/tests/field_test.module
@@ -88,9 +88,12 @@ function field_test_field_test_op($entity_type, $entity, $field, $instance, $lan
 function field_test_field_test_op_multiple($entity_type, $entities, $field, $instances, $langcode, &$items) {
   $result = array();
   foreach ($entities as $id => $entity) {
-    if (isset($items[$id])) {
-      $result[$id] = array($langcode => hash('sha256', serialize(array($entity_type, $entity, $field['field_name'], $langcode, $items[$id]))));
-    }
+    // Entities, instances and items are assumed to be consistently grouped by
+    // language. To verify this we try to access all the passed data structures
+    // by entity id. If they are grouped correctly, one entity, one instance and
+    // one array of items should be available for each entity id.
+    $field_name = $instances[$id]['field_name'];
+    $result[$id] = array($langcode => hash('sha256', serialize(array($entity_type, $entity, $field_name, $langcode, $items[$id]))));
   }
   return $result;
 }