Removes validate differences when comparing an Oracle Database Schema against a Spring Jpa / HibernateDatabase (#719)

Author: Guschtel

src/main/java/liquibase/ext/hibernate/diff/ChangedForeignKeyChangeGenerator.java

@@ -28,6 +28,7 @@ public Change[] fixChanged(DatabaseObject changedObject, ObjectDifferences diffe
         if (referenceDatabase instanceof HibernateDatabase || comparisonDatabase instanceof HibernateDatabase) {
             differences.removeDifference("deleteRule");
             differences.removeDifference("updateRule");
+            differences.removeDifference("validate");
             if (!differences.hasDifferences()) {
                 return null;
             }

src/main/java/liquibase/ext/hibernate/diff/ChangedPrimaryKeyChangeGenerator.java

@@ -27,6 +27,7 @@ public int getPriority(Class<? extends DatabaseObject> objectType, Database data
     public Change[] fixChanged(DatabaseObject changedObject, ObjectDifferences differences, DiffOutputControl control, Database referenceDatabase, Database comparisonDatabase, ChangeGeneratorChain chain) {
         if (referenceDatabase instanceof HibernateDatabase || comparisonDatabase instanceof HibernateDatabase) {
             differences.removeDifference("unique");
+            differences.removeDifference("validate");
             if (!differences.hasDifferences()) {
                 return null;
             }