Bug 9377 - itemtype in duplicate biblio search

Bug 9377 - itemtype in duplicate biblio search

In C4::Search::FindDuplicate, when biblio has no ISBN, the duplicate search adds :
$query .= " and itemtype=$result->{itemtype}".
This is wrong when itemtype is defined in items.

This patch simply removes the itemtype from dublicate search.

Test plan :
- Go to a biblio details page
- Click on "Edit as new (duplicate)"
- If ISBN is defined, remove it
- Click on save
=> a duplicate is detected
- Change biblio item type and save
=> a duplicate is detected
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>