HHH-10169 - Fix Hibernate ignores foreign-key name in hbm <joined-subclass>

Author: dreab8

hibernate-core/src/main/java/org/hibernate/boot/model/source/internal/hbm/ModelBinder.java

@@ -621,7 +621,7 @@ public Identifier determineImplicitName(LocalMetadataBuildingContext context) {
 					}
 				}
 		);
-
+		keyBinding.setForeignKeyName( entitySource.getExplicitForeignKeyName() );
 		// model.getKey().setType( new Type( model.getIdentifier() ) );
 		entityDescriptor.createPrimaryKey();
 		entityDescriptor.createForeignKey();