X-Git-Url: https://git.heureux-cyclage.org/?p=lhc%2Fweb%2Fwiklou.git;a=blobdiff_plain;f=includes%2Flibs%2Fobjectcache%2FMultiWriteBagOStuff.php;h=d94578dff12e3dcc96f086b8ba7a74098ffe25c9;hp=687c67c35629936acb10d4ed14201f2839bc26ee;hb=36395150104588f2afea866c330b683e4329fa48;hpb=f7e1770fb832aa77bf4e16ce8cc815f2b24dd10d

diff --git a/includes/libs/objectcache/MultiWriteBagOStuff.php b/includes/libs/objectcache/MultiWriteBagOStuff.php
index 687c67c356..d94578dff1 100644
--- a/includes/libs/objectcache/MultiWriteBagOStuff.php
+++ b/includes/libs/objectcache/MultiWriteBagOStuff.php
@@ -181,6 +181,12 @@ class MultiWriteBagOStuff extends BagOStuff {
 		$ret = true;
 		$args = array_slice( func_get_args(), 3 );
 
+		if ( $count > 1 && $asyncWrites ) {
+			// Deep-clone $args to prevent misbehavior when something writes an
+			// object to the BagOStuff then modifies it afterwards, e.g. T168040.
+			$args = unserialize( serialize( $args ) );
+		}
+
 		foreach ( $this->caches as $i => $cache ) {
 			if ( $i >= $count ) {
 				break; // ignore the lower tiers