diff --git a/main/cron/import_csv.php b/main/cron/import_csv.php
index e82e1368bb..13235bd65e 100755
--- a/main/cron/import_csv.php
+++ b/main/cron/import_csv.php
@@ -2567,7 +2567,7 @@ class ImportCsv
                         'extra_'.$careerDiagramExtraFieldName => serialize($graph),
                         'extra_'.$extraFieldName => $id,
                     ];
-                    $extraFieldValue->saveFieldValues($params);
+                    $extraFieldValue->saveFieldValues($params, true);
                 }
             }
         }
diff --git a/main/inc/lib/extra_field_value.lib.php b/main/inc/lib/extra_field_value.lib.php
index cf20251c98..b3f195fb4f 100755
--- a/main/inc/lib/extra_field_value.lib.php
+++ b/main/inc/lib/extra_field_value.lib.php
@@ -76,11 +76,12 @@ class ExtraFieldValue extends Model
      * In order to save this function needs a item_id (user id, course id, etc)
      * This function is used with $extraField->addElements()
      * @param array $params array for the insertion into the *_field_values table
+     * @param bool $onlySubmittedFields Only save parameters in the $param array
      * @param bool $showQuery
      * @return mixed false on empty params, void otherwise
      * @assert (array()) === false
      */
-    public function saveFieldValues($params, $showQuery = false)
+    public function saveFieldValues($params, $onlySubmittedFields = false, $showQuery = false)
     {
         foreach ($params as $key => $value) {
             $found = strpos($key, '__persist__');
@@ -119,6 +120,10 @@ class ExtraFieldValue extends Model
                 }
             }
 
+            if ($onlySubmittedFields && !isset($params['extra_'.$field_variable])) {
+                continue;
+            }
+
             if (isset($params['extra_'.$field_variable])) {
                 $value = $params['extra_'.$field_variable];
             } else {
@@ -332,11 +337,11 @@ class ExtraFieldValue extends Model
     /**
      * Save values in the *_field_values table
      * @param array $params Structured array with the values to save
-     * @param boolean $show_query Whether to show the insert query (passed to the parent save() method)
+     * @param boolean $showQuery Whether to show the insert query (passed to the parent save() method)
      * @return mixed The result sent from the parent method
      * @assert (array()) === false
      */
-    public function save($params, $show_query = false)
+    public function save($params, $showQuery = false)
     {
         $extra_field = $this->getExtraField();
 
@@ -421,7 +426,7 @@ class ExtraFieldValue extends Model
             }
 
             $params['value'] = $value_to_insert;
-            $params['author_id'] = api_get_user_id();
+            //$params['author_id'] = api_get_user_id();
 
             // Insert
             if (empty($field_values)) {
@@ -478,10 +483,10 @@ class ExtraFieldValue extends Model
 
                         $params['value'] = $optionId;
                         if ($optionId) {
-                            return parent::save($params, $show_query);
+                            return parent::save($params, $showQuery);
                         }
                     } else {
-                        return parent::save($params, $show_query);
+                        return parent::save($params, $showQuery);
                     }
                 }
             } else {
@@ -537,7 +542,7 @@ class ExtraFieldValue extends Model
                 } else {
                     $params['id'] = $field_values['id'];
 
-                    return parent::update($params, $show_query);
+                    return parent::update($params, $showQuery);
                 }
             }
         }
diff --git a/main/inc/lib/model.lib.php b/main/inc/lib/model.lib.php
index 3330dfbfb9..d926b9c8e0 100755
--- a/main/inc/lib/model.lib.php
+++ b/main/inc/lib/model.lib.php
@@ -214,11 +214,11 @@ class Model
     /**
      * Updates the obj in the database. The $params['id'] must exist in order to update a record
      * @param array $params
-     *
+     * @param bool $showQuery
      * @return bool
      *
      */
-    public function update($params)
+    public function update($params, $showQuery = false)
     {
         $params = $this->clean_parameters($params);
 
@@ -244,7 +244,8 @@ class Model
                 $result = Database::update(
                     $this->table,
                     $params,
-                    array('id = ?' => $id)
+                    array('id = ?' => $id),
+                    $showQuery
                 );
                 if ($result) {
                     return true;