Not the parent, use this

diff --git a/includes/installer/Installer.php b/includes/installer/Installer.php
index 47637d1..d64ee85 100644 (file)
--- a/includes/installer/Installer.php
+++ b/includes/installer/Installer.php
@@ -959,7 +959,7 @@ abstract class Installer {
                wfRestoreWarnings();
                
                if( $ls ) {
-                       if( $this->parent->getDBInstaller()->needsUpgrade() ) {
+                       if( $this->getDBInstaller()->needsUpgrade() ) {
                                $status->warning( 'config-localsettings-upgrade' );
                        }
                        else {