function postform H2 backward compatibility broken

[_ck_]

function postform in 1.0 attempts to maintain backward compatibility by first checking if the passed variable is a string instead and if so, use it as a H2 - However it does not work as intended and fails to use the string.

I think the way the defaults are extract somehow overrides it, I have to study it further. It may be is_string failing, though I doubt it, if so you could just switch to !is_array

ie.
<?php postform('Reply to George'); ?>

will still show the default header "Reply" instead "Reply to George"

[sambauers]

(In [2365]) Properly deal with backwards compatibility in post_form(). Fixes #1178