Bug? Diff. between privilege clicks...

[Durumdara <durumdara(at)gmail(dot)com>]

Hi!
When I click privileges tab, and I want to add a user there are differents I
saw:

a.) I click to privilege first (ALL), to user next
b.) I click to user first, and privilege next

One of cases it is make possibility to check grant, another is not.
That is based where I click first...

Bug?

1.8.4 - rev 7358.

Thanks:
dd