Bug 29495: Fix TestBuilder.t

Value not allowed for auto_incr issue_id in Issue at /kohadevbox/koha/t/lib/TestBuilder.pm line 387.

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Signed-off-by: Andrew Fuerste-Henry <andrew@bywatersolutions.com>
(cherry picked from commit 0e369364a3)
Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>

t/lib/TestBuilder.pm

@@ -596,6 +596,10 @@ sub _gen_default_values {
         BorrowerAttributeType => {
             mandatory => 0,
         },
+        ReturnClaim => {
+            issue_id => undef, # It should be a FK but we removed it
+                               # We don't want to generate a random value
+        },
     };
 }