The following error is displayed in the footer of the ACP login page:

Fatal error: Uncaught exception 'Twig_Error_Loader' with message 'Looks like you try to load a template outside configured directories (./../assets/javascript/core.js) in "overall_footer.html" at line 61.' in C:\xampp\htdocs\phpbb\clean\vendor\twig\twig\lib\Twig\Loader\Filesystem.php:219 Stack trace: #0 C:\xampp\htdocs\phpbb\clean\vendor\twig\twig\lib\Twig\Loader\Filesystem.php(176): Twig_Loader_Filesystem->validateName('./../assets/jav...') #1 C:\xampp\htdocs\phpbb\clean\vendor\twig\twig\lib\Twig\Loader\Filesystem.php(135): Twig_Loader_Filesystem->findTemplate('./../assets/jav...') #2 C:\xampp\htdocs\phpbb\clean\cache\twig\f7\ed\42eac190089c61ac459e310392e6.php(274): Twig_Loader_Filesystem->getCacheKey('./../assets/jav...') #3 C:\xampp\htdocs\phpbb\clean\vendor\twig\twig\lib\Twig\Template.php(264): __TwigTemplate_f7ed42eac190089c61ac459e310392e6->doDisplay(Array, Array) #4 C:\xampp\htdocs\phpbb\clean\vendor\twig\twig\lib\Twig\Template.php(238): Twig_Template->displayWithErrorHandling(Array, Array) #5 C:\xampp\htdocs\phpb in C:\xampp\htdocs\phpbb\clean\vendor\twig\twig\lib\Twig\Loader\Filesystem.php on line 219

Steps to reproduce:
1. Install latest develop
2. Log out
3. Log in
4. Click on ACP link in footer
3. See error (above) in footer