Fix failing test

Author: radovanradic

data-tck/src/main/groovy/io/micronaut/data/tck/tests/AbstractJSONSpec.groovy

@@ -26,7 +26,6 @@ import io.micronaut.data.tck.repositories.JsonEntityRepository
 import io.micronaut.data.tck.repositories.SaleItemRepository
 import io.micronaut.data.tck.repositories.SaleRepository
 import spock.lang.AutoCleanup
-import spock.lang.PendingFeature
 import spock.lang.Shared
 import spock.lang.Specification
 
@@ -157,7 +156,6 @@ abstract class AbstractJSONSpec extends Specification {
         cleanup()
     }
 
-    @PendingFeature(reason = "Temporary disable as it is failing")
     void "test read and write json with constructor args"() {
         given:
         def sale = saleRepository.save(new Sale(name: "test 1"))

data-tck/src/main/java/io/micronaut/data/tck/repositories/SaleItemRepository.java

@@ -24,6 +24,6 @@
 public interface SaleItemRepository extends CrudRepository<SaleItem, Long> {
 
     @Override
-    @Join(value = "sale", type = Join.Type.LEFT)
+    @Join(value = "sale", type = Join.Type.FETCH)
     Optional<SaleItem> findById(Long id);
 }