Fixed bug updating course description titles (fixes #5133)

main/course_description/index.php

@@ -126,6 +126,11 @@ $default_description_title_editable[7] = true;
 		MAIN CODE
 ==============================================================================
 */
+$sql = "SELECT id,title FROM $tbl_course_description ORDER BY id";
+$result = api_sql_query($sql, __FILE__, __LINE__);
+while ($row = Database::fetch_array($result)) {
+  $default_description_titles[$row['id']] = $row['title'];
+}
 
 if (api_is_allowed_to_edit() && !is_null($description_id) || $action =='add') {	
 	$description_id = intval($description_id);
@@ -270,9 +275,11 @@ if (api_is_allowed_to_edit() && !is_null($description_id) || $action =='add') {
 if ($show_description_list) {
 	$sql = "SELECT * FROM $tbl_course_description ORDER BY id";
 	$result = api_sql_query($sql, __FILE__, __LINE__);
-	$descriptions;
+	$descriptions = array();;
 	while ($description = Database::fetch_object($result)) {
 		$descriptions[$description->id] = $description;
+		//reload titles to ensure we have the last version (after edition)
+		$default_description_titles[$description->id] = $description->title;
 	}
 	if (api_is_allowed_to_edit()) {
 		$categories = array ();