Bug 36772: OPAC Self checkout accepts wrong or partial barcodes

Bug 36772: OPAC Self checkout accepts wrong or partial barcodes

    When using the opac trusted checkout feature it is possible to enter non existant or partial barcodes to check out items.

    Testplan:
    a) set  System preference OpacTrustedCheckout  to Allow
    b) go to http://localhost:8080/ and login with koha / koha
    c) click Self Checkout in navigation bar
    d) enter barcode 1234
    e) result: Item '39999000011234' was checked out

    apply patch and reload the page

    a) now enter barcode 1234
    b) result: Item '1234' not found
    c) enter 39999000011234
    d) result: Item '39999000011234' was checked out

Signed-off-by: Matt Blenkinsop <matt.blenkinsop@ptfs-europe.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
(cherry picked from commit 2884226fe27cd3e4d5f4a070405c047183fed881)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>