Cannot catch exception in debug mode

[frame via Digitalmars-d-learn]

Is this a known DMD bug or feature?


```d
void f(T)(int num)
{
    writefln("recognized %d as %s", num, T.stringof);
}

void main()
{
    try
    {
        throw new Exception("");
    }
    catch (Exception)
    {
        f!Exception(1);
    }
    catch (Throwable)
    {
        f!Throwable(1);
    }

    debug
    {
        try
        {
            throw new Exception("");
        }
        catch (Exception)
        {
            f!Exception(2);
        }
        catch (Throwable)
        {
            f!Throwable(2);
        }
    }
}

// prints
// recognized 1 as Exception
// recognized 2 as Throwable
```