#661 Not possible to view tickets for all users anymore

[Geir Bćkholt]

/Tickets?key=assigned&value=geir
( the main list of tickets, for the users named geir)
gives all tickets assigned to geir
…
while
/Tickets?key=assigned&value=
( the main list of tickets with "all users" selected )
returns a page stating
"You currently have no tickets in this view."

For some reason it does not query for tickets from all users anymore.
This used to work in 2.0.x