MySQL Bug reference in release notes, but where? This may be a daft question, but on the MySQL release notes, a lot of them are followed by BUG Reference numbers. But most of these BUGS don't exist when you search for them at bugs.mysql.com. 

example: InnoDB: A full-text query raised an assertion. Under certain circumstances, DDL operations such as ALTER TABLE ... RENAME caused full-text auxiliary tables to be removed on server restart. (Bug #13651665)

Despite my best efforts I can't find out where to find these BUGS. Can anyone point me at the right location?
Those big-numbered bugs are internal to Oracle.  We mere mortals are not allowed to see them.

The visible bugs are numbered under about 82000 (so far), and visible at bugs.mysql.com.