Fix mixed test for "show" and "showTemporary"
Fix mixed test for "show" and "showTemporary"

"showTemporary()" when a timeout was given was being tested along with
the "show()" tests; now there are two separate tests when a timeout is
given, one for "showTemporary()" and one for "show()".

Signed-off-by: Daniel Calviño Sánchez <bd7629e975cc0e00ea7cda4ab6a120f2ee42ac1b@gmail.com>

nextcloud/server,andreas-p/nextcloud-server,nextcloud/server,andreas-p/nextcloud-server,andreas-p/nextcloud-server,andreas-p/nextcloud-server,andreas-p/nextcloud-server,nextcloud/server,nextcloud/server