[Tails-testers] Bug: Cannot chose different language format

Hi

Reproduce 3 times after setting up Swiss keyboard (as first what I did,
and it seem the last):
1. Application > System Tools > Settings > Region & Language
2. Click on Formats, opens formats
3. Click on three poins at the end of the list -> opens search field
4. type "s" (for swiss...) the Formats window + Region & Language window
closes.

uname -a
Linux amnesia 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt20-1+deb8u2
(2016-01-02) x86_64 GNU/Linux

in virtualbox on a Manjaro host.

cheers
sto