Consider a user repository where we have following users:

• Piotr Stefaniak;pstefaniak@atlassian.com
• Przemek Bruski;pbruski@atlassian.com
• Lech Wałęsa;leszek@wp.pl
• Stefan Batory;piecia@o2.pl

In the user picker (for example notification/permission/responsibilities) I can write up "Piotr" "Przemek" "Lech" and the corresponding user appear - cool. However if I don't remember the first name, but I remember the last name (for example I start writing Stefaniak instead of Piotr) - I won't hit any results.

Question is, can we somehow improve the user searcher to search for every separate string found in his Name field?

In the example above, if I would input "Stefan" into the user picker I'd expect the picker to hint me to two entries: Piotr Stefan_iak and Stefan Batory.

Is that possible?