Different behavior of reload() in and out a transaction

Guys,

I consider following as a bug (OrientDB 2.0.1):

    @Test
    public void testUpdatesInHooks()
    {
        final String className = "TestUpdatesInHook";
        ODatabaseDocument db = wicket.getTester().getDatabase();
        db.registerHook(new ODocumentHookAbstract() {

            {
                setIncludeClasses(className);
            }

            @Override
            public DISTRIBUTED_EXECUTION_MODE getDistributedExecutionMode() {
                return DISTRIBUTED_EXECUTION_MODE.SOURCE_NODE;
            }

            @Override
            public RESULT onRecordBeforeCreate(ODocument iDocument) {
                return onRecordBeforeUpdate(iDocument);
            }

            @Override
            public RESULT onRecordBeforeUpdate(ODocument iDocument) {
                iDocument.undo("b");
                return RESULT.RECORD_CHANGED;
            }

            @Override
            public void onRecordAfterRead(ODocument iDocument) {
                if(!iDocument.containsField("b"))
                    iDocument.field("b", iDocument.field("a"));
            }


        });
        OSchema schema = db.getMetadata().getSchema();
        OClass classA = schema.createClass(className);
        classA.createProperty("a", OType.STRING);
        classA.createProperty("b", OType.STRING);
        db.commit();
        ODocument doc = new ODocument(classA);
        doc.field("a", "test1");
        doc.save();
        doc.reload();
        assertEquals(doc.field("a"), doc.field("b"));
        doc.field("a", "test2");
        doc.save();
        doc.reload();
        assertEquals(doc.field("a"), doc.field("b"));
        db.begin();
        doc.field("a", "test3");
        doc.save();
        doc.reload();
        assertEquals(doc.field("a"), doc.field("b"));
        doc.field("a", "test4");
        doc.save();
        doc.reload();
        assertEquals(doc.field("a"), doc.field("b"));
        db.commit();
    }

Can you guess which particular assert is failing?

The third one.

It seams that reload() in transaction doesn fire onRecordAfterRead().