WebPlayer has severe bug in Generics constraint verification (found in Unity 3.3.0f4)

Generics verification fails if a more-constrained generic tries to access a less constrained generic.

 class Blubb
 {
 }
 
 void Foo<T>()
 where T : Blubb 
 {
    Bar<T>();
 }
 
 void Bar<T>()
 where T : class
 {
 }

will fail with: Invalid generic method instantiation of method Bar (generic args don't respect target's constraints) at 0x000c Foo.

This prohibits the use of almost every non-simplistic Generic construct.

Probably unity is infected with this mono bug: https://bugzilla.novell.com/show_bug.cgi?id=660685

Interstingly the generics verification only seems to be activated in the Webplayer. The same code works without complaints in the standard player.

Any ideas how to get this fixed?