After upgrading to 3.7 i got an issues with one of my site. This site is user only, when trying to access it it should (was until 3.6.x) redirect you to a login page, after the 3.7 upgrade it gives a The page isn't redirecting properly error.
To recreate the issue just set a new 3.7 joomla installation home menu item to Access = Registered
- will redirect to: http://localhost/testjoomla/index.php/component/users/?view=login&Itemid=101 (ERROR)
- Removing the: &Itemid=101 (WORKS)
Tested with php 5.5.30 & 7.1.1