Merge mysql.com:/M41/bug16730-4.1 into mysql.com:/M41/merge-4.1

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# Bug #14583 Bug on query using a LIKE on indexed field with ucs2_bin collation

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--disable_warnings

create table t1(f1 varchar(5) CHARACTER SET ucs2 COLLATE ucs2_bin NOT NULL) engine=InnoDB;

--enable_warnings

insert into t1 values('a');

create index t1f1 on t1(f1);

select f1 from t1 where f1 like 'a%';