Changing a user's name does not trigger flushing the user's nodes cache

If I did not miss something here, the conditional in hook entitycache_flush_user_update()
will always return true. It compares the user's edited name after(!) the change with
the user name on which the operation was performed. Both should be the same at this moment.

Changing the conditional from

old

if ($edit['name'] != $account->name) { 
... 

to new

if ($edit['original']->name != $account->name) { 
...

fixes it in my use case.