Bug 21018: Allow uris defined in the item

Bug 21018: Allow uris defined in the item

We need to search for uri defined for the itemnumber we passed in
parameter.

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
(cherry picked from commit 1d888c8d0e9ee2eda9c793cf75fd73a7afeaef16)
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
(cherry picked from commit 0971fed0b85834f20bc2450c7e68e1d252363b56)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>