[MDEV-27945] Select from view with multi-byte charsets gives incorrect result - Jira

Test:

create table t1 (c varchar(30) character set utf8, t text character set utf8, unique (c(2)), unique (t(3))) engine=myisam;

insert t1 values ('cccc', 'tttt'),

  (0xD0B1212223D0B1D0B1D0B1D0B1D0B1, 0xD0B1D0B1212223D0B1D0B1D0B1D0B1),

  (0xD0B1222123D0B1D0B1D0B1D0B1D0B1, 0xD0B1D0B1222123D0B1D0B1D0B1D0B1);

  select c from t1 where c=0xD0B1212223D0B1D0B1D0B1D0B1D0B1;

create or replace view v1 as select c from t1 where c=0xD0B1212223D0B1D0B1D0B1D0B1D0B1;

select * from v1;

drop view v1;

drop table t1;

Expected result:
Result of

 select c from t1 where c=0xD0B1212223D0B1D0B1D0B1D0B1D0B1;

and

 select * from v1;

must be the same, but

 select * from v1;

gives an empty result

is part of

MDEV-27691 make working view-protocol

relates to

MDEV-28651 quote(NULL) returns incorrect result in view ('NU' instead of 'NULL')

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