VS2013 Compiler bug with nested lambda and types

VS2013 Compiler bug with nested lambda and types

This code compiles fine on ideone but not on Visual Studio 2013. Is it a
compiler bug?
#include <vector>
#include <algorithm>
int main()
{
std::vector<int> v1, v2;
typedef decltype(v1) t1;
std::for_each(v1.begin(), v1.end(), [&](const t1::value_type& a1)
{
typedef decltype(v2) t2;
std::for_each(v2.begin(), v2.end(), [&](const
t2::value_type a2)
{
});
});
}
error C2825: 't2': must be a class or namespace when followed by '::'
http://ideone.com/kGtTrB