Wrong result for a limit

[ytxytx]

I tried out a calculus exercise on SymPy and surprisingly it just failed to give the right answer, rather than timed out or throw an exception.
The problem is a bit confusing for human, though. But there must be something wrong that caused this fault.

In [2]: x = symbols('x', real = True)
In [3]: expr = (1+1/x)**(x**2)/exp(x)
In [4]: limit(expr, x, oo)
Out[4]: 1

The correct answer is exp(-1/2).

[smichr]

this is different than #24210

>>> eq = exp(x)/(1+1/x)**(x**2)
>>> limit(eq,x,oo)
exp(1/2)
>>> limit(1/eq,x,oo)
1