oracle forms create_group_from_query : upgrade v10 to v12 : order by does not work anymore

User_ODFGY

We have upgrades our forms from version 10 to 12c.

In the code we do :

rg_id := create_group_from_query(rg_name,lv_text);

   temp  := populate_group(rg_id);

   populate_list('INVOER.type_adres_cd', rg_id);

   delete_group(rg_id);

lv_text :=

'SELECT   rv_meaning

               ,        rv_low_value

               FROM     cg_ref_codes

               WHERE    rv_domain = ''TYPADR''

               AND      rv_low_value IN (SELECT sub_cd

                                         FROM   tag_code_boom

                                         WHERE  boom_cd = ''ADRES''

                                         AND    hfd_cd = '''||lv_type_hfd_cd||''')

               AND      rv_low_value NOT IN (''WOFF'',''WCORR'',''WBTW'',''RR'')

               ORDER BY rv_meaning';

==> result of this query is a list of value :

Correspendentie adres

OVMB Correspondenten adres

Officieel adres

SVMB Correspondenten adres

Vestigingsadres

If we leave out the 'ORDER BY rv_meaning' the lov is not ordered , with  'ORDER BY rv_meaning' the lov is ordered by values starting with 'O%' are not ordered by the second character.

I also tried ordering by  'ORDER BY UPPER(rv_meaning)' ; this gave the same result.

Is this a bug in forms12c?