Bug 16056: Do not crash when searching for an authority if zebra's index is not...

 Bug 16056: Do not crash when searching for an authority if zebra's index is not up-to-date

This patch fixes a regression introduced by
commit 7e70202d34d75f988fbaea9b911347417c203aac
  Bug 15381: Remove GetAuthType and GetAuthTypeCode

This first version will reintroduce the same behavior as before bug
15381: the record will be displayed even if it's no in the DB

Test plan:
Search for authorities
delete one
The zebra's index is not updated yet and the results will contain the
record you have deleted.

Signed-off-by: Tomas Cohen Arazi <tomascohen@unc.edu.ar>
Signed-off-by: Brendan A Gallagher <brendan@bywatersolutions.com>