When using the dynamic data element {last_modified} the post_date is displayed. I tested in 1.9.8 and 1.9.9 beta and the same results. Using a condition to test for inequality or equality, they are always equal. In the post table the dates are different as expected.
Hi Stephen,
You may have mistyped, but no {last_modified} dynamic data tag exists.
{post_modified}, on the other hand, does exist. And there shouldn’t be any problems with that - at least, I can’t see any.
Not a bug. The problem stems from a script I use for creating human readable dates.