@@ -, +, @@ --- Koha/SearchEngine/Elasticsearch/QueryBuilder.pm | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/Koha/SearchEngine/Elasticsearch/QueryBuilder.pm +++ a/Koha/SearchEngine/Elasticsearch/QueryBuilder.pm @@ -714,7 +714,7 @@ sub _convert_index_fields { my %index_type_convert = ( __default => undef, phr => 'phrase', rtrn => 'right-truncate', 'st-year' => 'st-year' ); - @indexes = grep(/.+/, @indexes); # Remove any blank indexes, i.e. keyword + @indexes = grep { $_ ne q{} } @indexes; # Remove any blank indexes, i.e. keyword # Convert according to our table, drop anything that doesn't convert. # If a field starts with mc- we save it as it's used (and removed) later --