Allow CACHE_NONE as a fallback for ObjectCache::newAccelerator

Test for null specifically rather than falsiness,
because CACHE_NONE is 0.

Bug: T86162
Change-Id: I98b9da42c6a5fd6cdf721cdbd5473a5e959581b8

diff --git a/includes/objectcache/ObjectCache.php b/includes/objectcache/ObjectCache.php
index 633b34a..62856f9 100644 (file)
--- a/includes/objectcache/ObjectCache.php
+++ b/includes/objectcache/ObjectCache.php
@@ -135,7 +135,7 @@ class ObjectCache {
                } elseif ( function_exists( 'wincache_ucache_get' ) ) {
                        $id = 'wincache';
                } else {
-                       if ( $fallback ) {
+                       if ( $fallback !== null ) {
                                return self::newFromId( $fallback );
                        }
                        throw new MWException( "CACHE_ACCEL requested but no suitable object " .