Bug 24123: Fix import of UTF-8 encoded MARC21 MARCXML using bulkmarcimport (elastic...

Bug 24123: Fix import of UTF-8 encoded MARC21 MARCXML using bulkmarcimport (elastic only)

If elastic is used as search engine, the bulkmarcimport.pl will not
handle correctly UTF-8 encoded MARCXML

Koha::SearchEngine::Search->new uses a require statement to load the correct Search module.
This is done l.257 of bulkmarcimport.pl:
  257 my $searcher = Koha::SearchEngine::Search->new

Koha::SearchEngine::Elasticsearch::Search will `use MARC::File::XML`, and so resets the arguments set before:
  216     $MARC::File::XML::_load_args{BinaryEncoding} = 'utf-8';

  220     $MARC::File::XML::_load_args{RecordFormat} = $recordformat;

An easy (but dirty) fix could be to move the declaration of my $searcher before in the script.
The tricky (but correct) fix would be to remove the long standing "ugly hack follows" comment.

This patch is the easy, and dirty, fix

Test plan:
Use the command line tool to import MARXCML records that contains unicode characters into Koha

Something like `misc/migration_tools/bulkmarcimport.pl -biblios -file record.marcxml -m=MARCXML`

Without this patch you will notice that unicode characters will not be displayed correctly

Signed-off-by: Michal Denar <black23@gmail.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Joy Nelson <joy@bywatersolutions.com>