joomla/joomla-platform — pull request #715 by LouisLandry (2012-01-06 22:03:31+00:00)
Title: Fix a problem with the autoloader when used with multiple SPL loaders.

When multiple loaders are registered with the SPL autoloader one might expect that PHP will stop looking once a class is found. This is not the case, it will continue to iterate through the loaders and if you don't handle the case within the loader you may end up with fatal errors if a class exists in two places.