Bug 9742: Does not display the popup on creating new record

Bug 9742: Does not display the popup on creating new record

The new confirmation on starting a z39.50 serach in cataloguing always
pops up, even when you are working on a new record that has not been
saved yet.

Test plan:
1/ Edit an existing record, click on the Z3950 search button, confirm
the popup appears.
2/ Create a new record, click on the Z3950 search button, confirm
the popup does not appear.

Followed test plan. Works as expected.
Signed-off-by: Marc Véron <veron@veron.ch>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>
Works as expected, Gustavo (librarian) convinced me that "it doesn't
hurt that much" with the test for new record. Happy easter :-D

(cherry picked from commit f0711f0d0d8f0b824ef9895367a6c7e2389d6e7a)
Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>