Bug 31071: Regression: date due removed from staff search results

Bug 31071: Regression: date due removed from staff search results

This patch corrects a regression caused by Bug 28321, which
inadvertently removed the date due from output of item information in
each search result.

To test, apply the patch and perform a catalog search which will return
some results which are checked out and some which aren't. Confirm that
the checked out items show the date due correctly.

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Emmanuel Bétemps <e.betemps@gmail.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>