cakephp/cakephp — comment on commit 1cf67b1e5511a85b4f15ada6b359ec8f4316be3f
File: lib/Cake/Model/ConnectionManager.php line 173
By majna:

Actually, $plugin information is never used in ExceptionRenderer or error view
https://github.com/cakephp/cakephp/blob/2.0/lib/Cake/View/Errors/missing_datasource.ctp

it could be removed or added for consistency to all exceptions with plugin scope (components, helpers..).