session: Fix missing return in SessionBackend::resetId()

Spotted by phan.

Change-Id: Ic11864916d50e79031c30a0e74dbbcf548ce31a0

diff --git a/includes/session/SessionBackend.php b/includes/session/SessionBackend.php
index 7956e9f..0ea13e2 100644 (file)
--- a/includes/session/SessionBackend.php
+++ b/includes/session/SessionBackend.php
@@ -270,6 +270,8 @@ final class SessionBackend {
                        // Delete the data for the old session ID now
                        $this->store->delete( $this->store->makeKey( 'MWSession', $oldId ) );
                }
+
+               return $this->id;
        }
 
        /**