The ClassDefValidator sets the PropDef.ClassDef to null for all Classes

[jeff2001]

Redmine Bug #1807
When the ClassDefValidator is called it sets the ClassDef property to null on all PropDefs.
This is as a result of being added to a Propdefcol that has no ClassDef.
The bug can be replicated through the following test:

[Test]        
        public void Test_ValidateClassDefs()
{
            //---------------Set up test pack-------------------
            ClassDef.ClassDefs.Add(StargateAppServerClassDefBroker.GetClassDefs());
            //---------------Assert Precondition----------------
            Assert.Greater(ClassDef.ClassDefs.Count, 0);
            Assert.IsNotNull(ClassDef.Get<MyBO>().GetPropDef("TextProp").ClassDef);
            //---------------Execute Test ----------------------
            var validator = new ClassDefValidator(new DefClassFactory());
            validator.ValidateClassDefs(ClassDef.ClassDefs);
            Assert.IsNotNull(ClassDef.Get<MyBO>().GetPropDef("TextProp").ClassDef);
        }

This is related to issue #1806 on redmine