Notice in PluginManager

Hi all,

in The Administration I get an yellow Errror box. An Update from 1.9.2 to 1.9.3-b10 didn’t solve the Problem.

[i]There is an error. Please report the message (Piwik 1.9.3-b10) and full backtrace in the Piwik forums (please do a Search first as it might have been reported already!).

Notice: Indirect modification of overloaded property Piwik_Config::$Plugins has no effect in /var/www/statistik/statistik/core/PluginsManager.php on line 634

Backtrace -->

#0 Piwik_ErrorHandler(…) called at [/var/www/statistik/statistik/core/PluginsManager.php:634]
#1 Piwik_PluginsManager->getMissingPlugins(…) called at [/var/www/statistik/statistik/core/Controller/Admin.php:48]
#2 Piwik_Controller_Admin::setBasicVariablesAdminView(…) called at [/var/www/statistik/statistik/core/Controller/Admin.php:30]
#3 Piwik_Controller_Admin->setBasicVariablesView(…) called at [/var/www/statistik/statistik/plugins/UsersManager/Controller.php:177]
#4 Piwik_UsersManager_Controller->userSettings(…) called at [:]
#5 call_user_func_array(…) called at [/var/www/statistik/statistik/core/FrontController.php:138]
#6 Piwik_FrontController->dispatch(…) called at [/var/www/statistik/statistik/index.php:53][/i]

How may I fix this error?
thx

Thanks for report, See: http://dev.piwik.org/trac/changeset/7657