Last modified: 2009-11-26 20:20:13 UTC
Skin::extensionTabLinks() in Skin.php calls: wfRunHooks( 'SkinTemplateTabs', array( $this, &$tabs ) ); SkinTemplate::buildContentActionUrls() in SkinTemplate.php calls: wfRunHooks( 'SkinTemplateTabs', array( &$this, &$content_actions ) ); Note the presence of & reference operator applied on $this in the SkinTemplate call. Both calls should be compatible. Probably the first one is correct, according to the documentation in http://www.mediawiki.org/wiki/Manual:Hooks/SkinTemplateTabs .
Fixed in r59468.