Better user picker in group picker

Hi Atlassian,

When adding some user for Project Role, a very useful "picker" appears. It's displaying a list of user matching with the characters that you type, even if the username it's not complete.

But, into group browser for adding new members to selected (groups), this "picker" doesn't appear.
Since we have to deal with big number of names, such same picker is very useful.

Thanks in advance,

Ben