Bug 33238: Fix bad suggestions query (Bug 29886 follow-up)

Bug 33238: Fix bad suggestions query (Bug 29886 follow-up)

With IndependentBranches Koha explodes with Error 500 when a non
superlibrarian tries to add to basket from suggestions.  In errorlog you
would find "DBIx::Class::Storage::DBI::_dbh_execute(): DBI Exception:
DBD::mysql::st execute failed: Column 'branchcode' in where clause is
ambiguous".

Test plan:
==========
1. Have a Koha instance with IndependentBranches, some accepted
   suggestions, and a vendor defined.
2. Be a non superlibrarian librarian with permissions to
   manage acquisitions.
3. Create a new basket and try to add an item to the basket
   "From a suggestion".
4. Koha would generate error 500.
5. Apply the patch.
6. Try to add an item to the basket "From a suggestion".
7. You should succeed.

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>