Assertion failure when using HAVING with constant values

Caused by this asserion failure
DBUG_ASSERT(using_unique_constraint ||
group_buff <= param->group_buff + param->group_length)
sql_select.cc:create_tmp_table

Presumably plugin or modified server code sets vtable_mode thd->infinidb_vtable.vtable_state to THD::INFINIDB_DISABLE_VfTABLE in the middle of table creation, that later causes the failure.

Steps to reproduce. FYI any table is fit.

MariaDB [cs]> show create table cs1;
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1 row in set (0.00 sec)

MariaDB [cs]> select * from cs1;
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4 rows in set (0.09 sec)

MariaDB [cs]> select a from cs1 group by a having 'c' = 1;