It is not compatible with Delphi XE3 Update 2

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Run your sample project DockTest.dpr 
2. Click "Clear All" button.
3. Raise excepion "Invalid class typecast" in unit Duck.pas line 1038
   method TRTTI.eachProperty(obj : TObject; proc : TProc<TRTTIProperty>);

What is the expected output? What do you see instead?
Clear all windowed controls but exception raise.

What version of the product are you using? On what operating system?
Delphi XE3 Update 2 (17.0.4770.56661)
Win 7 Ultimate (Build 7601 Service Pack 1)

Please provide any additional information below.
Nothing

Original issue reported on code.google.com by [email protected] on 28 Mar 2013 at 3:36