ER_TOO_BIG_FIELDLENGTH shows wrong maximum length for vector field

MariaDB [test]> create or replace table t (v vector(32000));

ERROR 1074 (42000): Column length too big for column 'v' (max = 65532); use BLOB or TEXT instead

MariaDB [test]> create or replace table t (v vector(16383));

Query OK, 0 rows affected (0.043 sec)

MariaDB [test]> create or replace table t (v vector(16384));

ERROR 1074 (42000): Column length too big for column 'v' (max = 65532); use BLOB or TEXT instead