sympy/sympy — pull request #2812 by avichaldayal (2014-01-21 05:06:16+00:00)
Title: Series: Passed dummy logx parameter in _eval_nseries

This change will lose logarithmic order factors as the logx parameter
is not included in big O notation.

There is a test which fails because of this.
To fix that, can we change the order function such that it includes the logx parameter too?