Problem in class collaboration diagram when using template members

I have recently observed that Doxygen is not showing class collaboration
diagram properly in some situations like the flowing.
suppose there is a class A which contains vector of objects of class B.

class B {
int data;
};

class A {
int data;
std::vector<B> b;
};

'b' is not shown in the collaboration diagram of class A in this
situation.

I have searched bugzilla but didn't find any match. Is this known behavior ?

-- 
Keshetti Mahesh

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