registration: Fix upgradeExtensionJsonSchema to remove _merge_strategy

The unset() call was on the wrong array.

Bug: T252576
Change-Id: Ieaa3273d2867df87f67b110e97149410066b6795

diff --git a/maintenance/updateExtensionJsonSchema.php b/maintenance/updateExtensionJsonSchema.php
index 6233d5b..46c8b77 100644 (file)
--- a/maintenance/updateExtensionJsonSchema.php
+++ b/maintenance/updateExtensionJsonSchema.php
@@ -57,7 +57,7 @@ class UpdateExtensionJsonSchema extends Maintenance {
                                        $json['config'][$name] = [ 'value' => $value ];
                                        if ( isset( $value[ExtensionRegistry::MERGE_STRATEGY] ) ) {
                                                $json['config'][$name]['merge_strategy'] = $value[ExtensionRegistry::MERGE_STRATEGY];
-                                               unset( $value[ExtensionRegistry::MERGE_STRATEGY] );
+                                               unset( $json['config'][$name]['value'][ExtensionRegistry::MERGE_STRATEGY] );
                                        }
                                }
                        }