LIKE clause on Map key and value - querydsl

Question

Is there a way to convert given query from @Query annotation to Query DSL?
The idea is to search for countries by few first characters of name.
While using Hibernate 5.5.6.Final, this query was fine, but today I tried Hibernate 6.0.0.Alpha9 and it does not like my query at all.

@Query(
    "SELECT DISTINCT c " +
    "FROM Country c " +
    "LEFT JOIN FETCH c.localizations loc " +
    "WHERE " +
        "KEY( loc ) LIKE 'NAME%' " +
        "AND " +
       "LOWER( loc ) LIKE LOWER( :name ) "
)
List<Country> findByFirstChars( @Param(value = "name") String name );

Country entity:

@Getter @Setter
class Country {
    // map entry key can be "NAME1", "NAME2", "NOTE1", "NOTE2"...
    // while map entry value is country name or some note
    private Map<String, String> localizations;
    ...more properties
}

Q classess are generated by Maven APT plugin, querydsl-apt and querydsl-jpa.

This is what I want:

List<Country> findByFirstChars( String name ) {
    return new JPAQueryFactory( entityManager )
                .selectFrom( QCountry.country )
                .where( ??? )
                .fetch();
}

EDIT: Another try which failed

List<Country> findByFirstChars(String name) {
    QCountry country = QCountry.country;

    BooleanExpression whereClause1 =
        Expressions.stringTemplate("KEY({0})",
            country.localizations).like(KEY_PREFIX + "%");

    BooleanExpression whereClause2 =
        Expressions.stringTemplate("LOWER({0})",
            country.localizations).likeIgnoreCase(name);

    return 
        new JPAQueryFactory(this.entityManager)
            .selectFrom(country)
            .distinct()
            .leftJoin(country.localizations).fetchJoin()
            .where(                 
                whereClause1.and(whereClause2)
            )
            .fetch();
}

It generates almost the same HQL as original one:

select distinct country
from Country country
  left join fetch country.localizations.data
where KEY( country.localizations.data ) like ?1 escape '!'
    and lower(LOWER( country.localizations.data )) like ?2

but I get an error: Parameter value [cro] did not match expected type [java.util.Map (n/a)]

If I use VALUE() in whereClause2 the HQL is:

select distinct country
from Country country
  left join fetch country.localizations.data
where KEY( country.localizations.data ) like ?1 escape '!'
   and lower(VALUE( country.localizations.data )) like ?2 

and also I get an error: SQL Error: 1242, SQLState: 21000 - Subquery returns more than 1 row