Bug 31179: (QA follow-up) Set field as hidden for tests

We want the tests to pass in the case where field is set to visibile in Koha

Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>

t/db_dependent/Koha/UI/Form/Builder/Item.t

@@ -387,6 +387,14 @@ sub setup_mss {
         }
     )->update( { repeatable => 0 } );
 
+    Koha::MarcSubfieldStructures->search(
+        {
+            frameworkcode => '',
+            tagfield => $itemtag,
+            tagsubfield => ['l'],
+        }
+    )->update( { hidden => -4 } );
+
     Koha::MarcSubfieldStructures->search(
         {
             frameworkcode => '',