Last modified: 2013-04-06 18:46:24 UTC
Created attachment 12042 [details] username.png 1. Go to the login page . 2. Enter the user name with any number of "leading underscore" characters . Example : _____suman 3. Enter the correct password and click on login. Result : It is omitting the leading underscores and logging in .
Intended behavior, underscores are considered whitespace in both MediaWiki pages and usernames, and excess whitespace is ignored.