Fixing BT#1796 when adding a course to a session, users relationship is not updated

main/admin/add_courses_to_session.php

@@ -118,9 +118,9 @@ if ($_POST['formSent']) {
 	$rs = Database::query("SELECT course_code FROM $tbl_session_rel_course WHERE id_session=$id_session");
 	$existingCourses = Database::store_result($rs);
     
-	$sql="SELECT id_user
-		FROM $tbl_session_rel_user
-		WHERE id_session = $id_session AND relation_type=".COURSE_RELATION_TYPE_RRHH." ";
+    // Updating only the RRHH users?? why?
+	//$sql="SELECT id_user FROM $tbl_session_rel_user WHERE id_session = $id_session AND relation_type=".COURSE_RELATION_TYPE_RRHH." ";
+    $sql        = "SELECT id_user FROM $tbl_session_rel_user WHERE id_session = $id_session ";
 	$result     = Database::query($sql);
 	$UserList   = Database::store_result($result);